kevin/linux
1
Fork 0
Code

Input: himax_hx83112b - fix incorrect size when reading product ID

Browse Source 
We need to read a u32 value (4 bytes), not size of a pointer to that
value.

Also, himax_read_mcu() wrapper is an overkill, remove it and use
himax_bus_read() directly.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202408200301.Ujpj7Vov-lkp@intel.com/
Fixes: 0944829d49 ("Input: himax_hx83112b - implement MCU register reading")
Tested-by: Felix Kaechele <felix@kaechele.ca>
Link: https://lore.kernel.org/r/ZsPdmtfC54R7JVxR@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov 2024-08-19 17:04:42 -07:00
parent aaa4ca873d
commit 4e870e6bbe
1 changed files with 2 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/input/touchscreen/himax_hx83112b.c
View File

@ -130,17 +130,6 @@ static int himax_bus_read(struct himax_ts_data *ts, u32 address, void *dst,
return 0;
}
static int himax_read_mcu(struct himax_ts_data *ts, u32 address, u32 *dst)
{
int error;
error = himax_bus_read(ts, address, dst, sizeof(dst));
if (error)
return error;
return 0;
}
static void himax_reset(struct himax_ts_data *ts)
{
gpiod_set_value_cansleep(ts->gpiod_rst, 1);
@ -160,7 +149,8 @@ static int himax_read_product_id(struct himax_ts_data *ts, u32 *product_id)
{
int error;
error = himax_read_mcu(ts, HIMAX_REG_ADDR_ICID, product_id);
error = himax_bus_read(ts, HIMAX_REG_ADDR_ICID, product_id,
sizeof(*product_id));
if (error)
return error;