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scsi: qedf: use correct strncpy() size

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gcc-8 warns during link-time optimization that the strncpy() call passes
the size of the source buffer rather than the destination:

drivers/scsi/qedf/qedf_dbg.c: In function 'qedf_uevent_emit':
include/linux/string.h:253: error: 'strncpy' specified bound depends on the length of the source argument [-Werror=stringop-overflow=]

This changes it to strscpy() with the correct length, guaranteeing a
properly nul-terminated string of the right size.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Arnd Bergmann 2018-02-02 14:12:20 +01:00 committed by Martin K. Petersen
parent d9ea463a1c
commit a8db6140d7
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/qedf/qedf_dbg.c
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@ -160,7 +160,7 @@ qedf_uevent_emit(struct Scsi_Host *shost, u32 code, char *msg)
switch (code) {
case QEDF_UEVENT_CODE_GRCDUMP:
if (msg)
strncpy(event_string, msg, strlen(msg));
strscpy(event_string, msg, sizeof(event_string));
else
sprintf(event_string, "GRCDUMP=%u", shost->host_no);
break;