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Expressions of the form "tty->termios.c_*flag & FLAG"
are more clearly expressed with the termios flags macros,
I_FLAG(), C_FLAG(), O_FLAG(), and L_FLAG().
Convert treewide.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Waking the write_wait queue is exactly what tty_wakeup() does;
remove the open-coded wakeups.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The open-coded tty_wakeup()s are attempts to workaround fixed bugs
in the line discipline write_wakeup() method. Replace with tty_wakeup().
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch adds spaces around binary operator '|'.
Done with coccinelle semantic patch:
@@
identifier x, y, z;
@@
(
- x|y|z
+ x | y | z
|
- x|y
+ x | y
)
Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch removes unnecessary brackets when dealing with
unary operators like '&'.
Done with coccinelle semantic patch:
@@
expression e;
@@
(
- &(e)
+ &e
)
Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch removes unnecessary spaces after the cast.
Patch done with coccinelle semantic patch:
@rule0@
type t;
identifier e;
constant c;
expression expr;
@@
(
- (t) e
+ (t)e
|
- (t) c
+ (t)c
|
- (t) expr
+ (t)expr
)
Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Indent parameters and arguments passed to function calls to match
open paranthesis
Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch removes the unnecessary blank lines before a closed
bracket and after an open bracket.
Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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struct bd is already NULL tested so, any further NULL checks should be
removed.
Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The IO configuration was not used to configure the board. It was only
read from the configuration file. Stop reading it and also remove the
other related variables defined for it.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In dgap_parsefile() char pointers are set with kstrdup()
without checking that some string is allocated to that
char pointer before. This patch frees the memory if already allocated
and then set the poniter with kstrdup().
Signed-off-by: Ronit halder <ronit.crj@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The driver is using -1 instead of the -ENOMEM defined macro to specify
that a buffer allocation failed. Since the error number is propagated,
the caller will get a -EPERM which is the wrong error condition.
Also, the smatch tool complains with the following warning:
dgap_parsefile() warn: returning -1 instead of -ENOMEM is sloppy
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The <linux/string.h> provides strpbrk() function that does
the same that the dgap_sindex(). Let's use already defined
function instead of writing custom.
Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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These variables were assigned some values but they were never used.
Removed them but kept one call to ioread8() as it might affect the
hardware.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The return pointer from dgap_getword() is used in strcmp() where it is
dereferenced. But dgap_getword() can return NULL.
Lets put a check there and return 0 as error.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch compresses two lines into a single line
if immediate return statement is found. Remove variable rc as
it is no longer needed.
It is done using script Coccinelle. And coccinelle uses the following
semantic patch for this compression function:
@@
type T;
identifier i,f;
constant C;
@@
- T i;
...when != i
when strict
(
return -C;
|
- i =
+ return
f(...);
- return i;
)
Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove the duplicate code of dgap_remove_one() and dgap_stop().
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In a later patch we will remove the duplicate codes. But the code also
needs to execute dgap_remove_driver_sysfiles() if it is being called
from dgap_remove_one() but if being called fron the error path of the
dgap_init_module() then the sysfiles should not be removed.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Relocate the function dgap_stop() so that in a later patch we can remove
the duplicate codes between dgap_stop() and dgap_remove_one().
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The code in dgap_stop() is almost a duplicate of the code that will be
executed on pci_unregister_driver(). So the error code was stopping and
unregistering everything twice.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixed comment spelling errors
Signed-off-by: Colin Cronin <colinpatrickcronin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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dgap_sindex() is being only called from dgap_getword() which searches
for either ' ' or '\t' or '\n'. this part of the code with '^' at the
beginning is never used.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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the remove callback will be called in two cases, 1) if the driver is
removed and 2) if the pci device is removed. as of now all the board
cleanups were being done in the module unload section so if the module
is unloaded everything works. But if the pci device is removed then the
loaded driver will be left in an inconsistent state.
So moved the cleanups in the remove callback and since there was no
reference of dgap_driver in remove_one(), so had to define the
pci_driver in the function.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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move the cleanup function before the remove call as the next patch of
the series is going to use that.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The function setup_timer combines the initialization of a timer with the
initialization of the timer's function and data fields.
So, this patch combines the multiline code for timer initialization using the function
setup_timer. This issue is identified via coccinelle script.
@@
expression E1, E2, E3;
type T;
@@
- init_timer(&E1);
...
(
- E1.function = E2;
...
- E1.data = (T)E3;
+ setup_timer(&E1, E2, (T)E3);
|
- E1.data = (T)E3;
...
- E1.function = E2;
+ setup_timer(&E1, E2, (T)E3);
|
- E1.function = E2;
+ setup_timer(&E1, E2, 0);
)
Signed-off-by: Somya Anand <somyaanand214@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch removes variable that was used to store only the return value of a function call.
The issue was detected and resolved using the following coccinelle script:
@@
expression ret;
identifier f;
@@
-ret =
+return
f(...);
-return ret;
Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Building for ARM64 leads to the following build warning:
In file included from drivers/staging/dgap/dgap.c:66:0:
drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined
#define PCI_IO_SIZE 0x00200000
^
In file included from ./arch/arm64/include/asm/page.h:66:0,
from include/linux/mm_types.h:15,
from include/linux/sched.h:27,
from ./arch/arm64/include/asm/compat.h:25,
from ./arch/arm64/include/asm/stat.h:23,
from include/linux/stat.h:5,
from include/linux/module.h:10,
from drivers/staging/dgap/dgap.c:47:
./arch/arm64/include/asm/memory.h:39:0: note: this is the location of the previous definition
#define PCI_IO_SIZE SZ_16M
^
Use PCI_IO_SIZE_DGAP to avoid the name collision.
Reported-by: Olof's autobuilder <build@lixom.net>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch removes a variable that was simply used to
store the return value of a function call before
returning it.
The issue was detected and resolved using the following
coccinelle script:
@@
identifier len,f;
@@
-int len;
... when != len
when strict
-len =
+return
f(...);
-return len;
Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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cppcheck warning:
(warnning) Logical disjunction always evaluates to true
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the checkpatch.pl warning:
WARNING:Missing a blank line after declaration
Signed-off-by: Anjana Sasindran <anjanasasindran123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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use find_board_by_major function instead of getting a brd from static
arrary. Becasue tty's major number doesn't start zero and we can
find a brd from dgap_board[].
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The board_t has a tty_struct(serial_driver and print_driver)
that has a major number. When major number is compared in
dgap_tty_open(), just use brd->serial_driver{print_driver}->major.
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The tty_struct of serial_driver and print_driver were getting
allocated twice. One is allocated in tty_alloc_driver(), the other
is in dgap_tty_register(). So remove these in dgap_tty_register().
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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tty's flags can be set by calling tty_alloc_driver().
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The dgap_init_global() initialize the dgap_board
that is a global variable as static and dgap_poll_timer.
But init_timer() is called twice in dgap_start() and dgap_board
doesn't need to be initialized to NULL.
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Re-arrange the functions for removing forward declarations.
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Tested-by: Mark Hounschell <markh@compro.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Cast on NULL to a pointer type is not required. This
patch removes NULL casted to some pointer type.
The sematic patch used is:
@r@
type T;
@@
- (T *)NULL
+ NULL
Build tested it.
Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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void pointers do not need to be cast to other pointer types.
The semantic patch used to find this:
@r@
expression x;
void* e;
type T;
identifier f;
@@
(
*((T *)e)
|
((T *)x)[...]
|
((T *)x)->f
|
- (T *)
e
)
Build tested it.
Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The following semantic patch is used to do this
@r exists@ // find anything that might decrement the variable
identifier i;
expression E;
position p;
@@
int i@p;
...
(
&i
|
i--
|
--i
|
i-=E
|
i+=E
)
@x disable decl_init@
identifier r.i;
expression E;
position p1 != r.p;
@@
(
volatile int i = 0;
|
volatile int i;
|
+ unsigned
int i@p1 = 0;
|
+ unsigned
int i@p1;
)
<... when != i = E
(
i = 0
|
i = 1
)
...>
Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The dgap_init_module() need to unwind for cleanup variables properly.
Because dgap_init_module() calls dgap_cleanup_module() for freeing
variables but this function is possible to free variables
which are not allocated.
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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dgap_do_remap() and dgap_release_remap() names could be
changed to dgap_remap() and dgap_unmap().
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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dgap_release_remap() function is only called after the memory
has been remapped so if statement for checking NULL doesn't
need.
And also release_mem_region() calls are moved after iounmap() calls.
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes sparse warning
warning: variable ‘orig_count’ set but not used [-Wunused-but-set-variable]
Signed-off-by: Rahul Bedarkar <rahulbedarkar89@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Just simply use dgap_release_remap() in dgap_cleanup_board() for
releasing map memory.
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using schedule_timeout_interruptible() is exactly same as
setting a status of current process and calling schedule_timeout().
Removes dgap_ms_sleep(), because this function is used
only when closing tty channel on dgap_tty_close().
And also removes ch_close_delay that is always set to 250
on dgap_tty_init().
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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characters"
Break lines exceeding 80 characters
Signed-off-by: Piotr Witoslawski <pwitos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The use_interrupts is used only in dagp_request_irq() for checking
a value from user config file. It doesn't need in board_t struct.
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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