[PATCH][V2] input: ims-pcu: return error code rather than -ENOMEM

Colin King
2020-06-03T15:21:55Z

From: Colin Ian King <colin.king@canonical.com>

Currently the assignment of -ENOMEM to error is redudant because error
is not being read and -ENOMEM is being hard coded as an error return.
Fix this by returning the error code in variable 'error'; this also
allows the error code from a failed call to input_register_device to
be preserved and returned to the caller rather than just returning
a possibly inappropriate -ENOMEM.

Kudos to Dan Carpenter for the suggestion of an improved fix.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>

---

V2: change subject line and return the error code rather than
removing the ENOMEM assignment to error. Thanks to Dan Carpenter
for explaining a better fix.

---
drivers/input/misc/ims-pcu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
index d8dbfc030d0f..08b9b5cdb943 100644
--- a/drivers/input/misc/ims-pcu.c
+++ b/drivers/input/misc/ims-pcu.c
@@ -335,7 +335,7 @@ static int ims_pcu_setup_gamepad(struct ims_pcu *pcu)
err_free_mem:
input_free_device(input);
kfree(gamepad);
- return -ENOMEM;
+ return error;
}

static void ims_pcu_destroy_gamepad(struct ims_pcu *pcu)
--
2.25.1