Fixes the warning issue of the variable dereferenced before check
'gen5_pip->resp_len' report by dan Carpenter.
Signed-off-by: Dudley Du <d...@cypress.com>
---
drivers/input/mouse/cyapa_gen5.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c
index 69d9059..ed1af74 100644
--- a/drivers/input/mouse/cyapa_gen5.c
+++ b/drivers/input/mouse/cyapa_gen5.c
@@ -2558,7 +2558,9 @@ static bool cyapa_gen5_irq_cmd_handler(struct cyapa
*cyapa)
* trackpad device when booting/rebooting
* their chrome book.
*/
- length = *gen5_pip->resp_len;
+ length = 0;
+ if (gen5_pip->resp_len)
+ length = *gen5_pip->resp_len;
cyapa_empty_pip_output_data(cyapa,
gen5_pip->resp_data,
&length,
--
1.9.1
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