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authorAl Viro <viro@zeniv.linux.org.uk>2013-05-05 21:52:57 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2013-05-07 02:16:21 -0400
commitdb2a144bedd58b3dcf19950c2f476c58c9f39d18 (patch)
tree931f1b5a8e6bafe388b317bce02a9fd9af309d38 /drivers/block/paride
parenta8ca889ed9585894d53fd8919d80cbe8baff09e7 (diff)
downloadlinux-db2a144bedd58b3dcf19950c2f476c58c9f39d18.tar.bz2
block_device_operations->release() should return void
The value passed is 0 in all but "it can never happen" cases (and those only in a couple of drivers) *and* it would've been lost on the way out anyway, even if something tried to pass something meaningful. Just don't bother. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/block/paride')
-rw-r--r--drivers/block/paride/pcd.c3
-rw-r--r--drivers/block/paride/pd.c4
-rw-r--r--drivers/block/paride/pf.c9
3 files changed, 6 insertions, 10 deletions
diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c
index ba2b6b5e5910..e76bdc074dbe 100644
--- a/drivers/block/paride/pcd.c
+++ b/drivers/block/paride/pcd.c
@@ -236,13 +236,12 @@ static int pcd_block_open(struct block_device *bdev, fmode_t mode)
return ret;
}
-static int pcd_block_release(struct gendisk *disk, fmode_t mode)
+static void pcd_block_release(struct gendisk *disk, fmode_t mode)
{
struct pcd_unit *cd = disk->private_data;
mutex_lock(&pcd_mutex);
cdrom_release(&cd->info, mode);
mutex_unlock(&pcd_mutex);
- return 0;
}
static int pcd_block_ioctl(struct block_device *bdev, fmode_t mode,
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index 831e3ac156e6..19ad8f0c83ef 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -783,7 +783,7 @@ static int pd_ioctl(struct block_device *bdev, fmode_t mode,
}
}
-static int pd_release(struct gendisk *p, fmode_t mode)
+static void pd_release(struct gendisk *p, fmode_t mode)
{
struct pd_unit *disk = p->private_data;
@@ -791,8 +791,6 @@ static int pd_release(struct gendisk *p, fmode_t mode)
if (!--disk->access && disk->removable)
pd_special_command(disk, pd_door_unlock);
mutex_unlock(&pd_mutex);
-
- return 0;
}
static unsigned int pd_check_events(struct gendisk *p, unsigned int clearing)
diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index ec8f9ed6326e..f5c86d523ba0 100644
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -211,7 +211,7 @@ static int pf_ioctl(struct block_device *bdev, fmode_t mode,
unsigned int cmd, unsigned long arg);
static int pf_getgeo(struct block_device *bdev, struct hd_geometry *geo);
-static int pf_release(struct gendisk *disk, fmode_t mode);
+static void pf_release(struct gendisk *disk, fmode_t mode);
static int pf_detect(void);
static void do_pf_read(void);
@@ -360,14 +360,15 @@ static int pf_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, u
return 0;
}
-static int pf_release(struct gendisk *disk, fmode_t mode)
+static void pf_release(struct gendisk *disk, fmode_t mode)
{
struct pf_unit *pf = disk->private_data;
mutex_lock(&pf_mutex);
if (pf->access <= 0) {
mutex_unlock(&pf_mutex);
- return -EINVAL;
+ WARN_ON(1);
+ return;
}
pf->access--;
@@ -376,8 +377,6 @@ static int pf_release(struct gendisk *disk, fmode_t mode)
pf_lock(pf, 0);
mutex_unlock(&pf_mutex);
- return 0;
-
}
static unsigned int pf_check_events(struct gendisk *disk, unsigned int clearing)