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| author | Andrew Duggan <aduggan@synaptics.com> | 2016-08-22 11:28:11 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2016-08-22 14:14:46 -0700 |
| commit | 3e29d6bb6433ebfa4e187b1164b80baf720d58c3 (patch) | |
| tree | 50af854be5af8de7bc994147eb7fa574cdf8964f /drivers/input | |
| parent | fae16989be77b09bab86c79233e4b511ea769cea (diff) | |
| download | linux-3e29d6bb6433ebfa4e187b1164b80baf720d58c3.tar.bz2 | |
Input: synaptics-rmi4 - fix register descriptor subpacket map construction
The map_offset variable is specific to the register and needs to be reset
in the loop. Otherwise, subsequent register's subpacket maps will have
their bits set at the wrong index.
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Tested-by: Nitin Chaudhary <nitinchaudhary1289@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/rmi4/rmi_driver.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c index faa295ec4f31..c83bce89028b 100644 --- a/drivers/input/rmi4/rmi_driver.c +++ b/drivers/input/rmi4/rmi_driver.c @@ -553,7 +553,6 @@ int rmi_read_register_desc(struct rmi_device *d, u16 addr, goto free_struct_buff; reg = find_first_bit(rdesc->presense_map, RMI_REG_DESC_PRESENSE_BITS); - map_offset = 0; for (i = 0; i < rdesc->num_registers; i++) { struct rmi_register_desc_item *item = &rdesc->registers[i]; int reg_size = struct_buf[offset]; @@ -576,6 +575,8 @@ int rmi_read_register_desc(struct rmi_device *d, u16 addr, item->reg = reg; item->reg_size = reg_size; + map_offset = 0; + do { for (b = 0; b < 7; b++) { if (struct_buf[offset] & (0x1 << b)) |