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block: floppy: Fix uninitialized use of outparam

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Fix Smatch-detected error:
drivers/block/floppy.c:3569 fd_locked_ioctl() error:
uninitialized symbol 'outparam'.

Smatch may incorrectly warn about uninitialized use of 'outparam'
in fd_locked_ioctl(), even though all _IOC_READ commands guarantee
its initialization. Initialize outparam to NULL to make this explicit
and suppress the false positive.

Signed-off-by: Purva Yeshi <purvayeshi550@gmail.com>
Reviewed-by: Denis Efremov <efremov@linux.com>
Link: https://lore.kernel.org/r/20250713070020.14530-1-purvayeshi550@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Purva Yeshi
2025-07-13 12:08:31 -06:00
committed by Jens Axboe
parent 7e49538288
commit cb1bdf0797
1 changed files with 1 additions and 1 deletions
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drivers/block/floppy.c
+1 -1
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@@ -3411,7 +3411,7 @@ static int fd_locked_ioctl(struct block_device *bdev, blk_mode_t mode,
struct floppy_max_errors max_errors;
struct floppy_drive_params dp;
} inparam; /* parameters coming from user space */
const void *outparam; /* parameters passed back to user space */
const void *outparam = NULL; /* parameters passed back to user space */
/* convert compatibility eject ioctls into floppy eject ioctl.
* We do this in order to provide a means to eject floppy disks before