scsi: scsi_devinfo: Return an error when the proc write fails

proc_scsi_devinfo_write() calls scsi_dev_info_list_add_str() but ignores
its return value, so a write to /proc/scsi/device_info always reports
success, even when the string is malformed and no entry was added.  Users
and scripts then believe that the quirk is in effect.

scsi_init_devinfo() already checks the return value of the same function
and fails the initialization.  Return the parser error, but keep returning
the number of bytes written on success: a proc write handler that returns
zero for a non-empty write would look like a short write to the caller.

Signed-off-by: Shao Mingyin <shao.mingyin@zte.com.cn>
Reviewed-by: Laurence Oberman <loberman@redhat.com>
Link: https://patch.msgid.link/20261031222133489hI-BEIDpFMxrtlntnLiFb@zte.com.cn
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>

0 files changed, 0 insertions, 0 deletions