6.15-stable review patch. If anyone has any objections, please let me know.
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From: Harshit Mogalapalli harshit.m.mogalapalli@oracle.com
[ Upstream commit aa07b790d79226f9bd0731d2c065db2823867cc5 ]
When copy_from_user() fails it return number of bytes it wasn't able to copy. So the correct return value when copy_from_user() fails is -EFAULT.
Fixes: 9dde4559e939 ("staging: gpib: Add GPIB common core driver") Signed-off-by: Harshit Mogalapalli harshit.m.mogalapalli@oracle.com Link: https://lore.kernel.org/r/20250703064633.1955893-1-harshit.m.mogalapalli@ora... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/staging/gpib/common/gpib_os.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/gpib/common/gpib_os.c b/drivers/staging/gpib/common/gpib_os.c index 8456b97290b8..01a9099a6c16 100644 --- a/drivers/staging/gpib/common/gpib_os.c +++ b/drivers/staging/gpib/common/gpib_os.c @@ -819,7 +819,7 @@ static int board_type_ioctl(gpib_file_private_t *file_priv, struct gpib_board *b
retval = copy_from_user(&cmd, (void __user *)arg, sizeof(board_type_ioctl_t)); if (retval) - return retval; + return -EFAULT;
for (list_ptr = registered_drivers.next; list_ptr != ®istered_drivers; list_ptr = list_ptr->next) {