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Since snprintf() returns the would-be-output size instead of the actual output size, the succeeding calls may go beyond the given buffer limit. Fix it by replacing with scnprintf(). Link: https://lore.kernel.org/r/20200315094241.9086-2-tiwai@suse.de Cc: "James E . J . Bottomley" <jejb@linux.ibm.com> Cc: "Martin K . Petersen" <martin.petersen@oracle.com> Cc: Adaptec OEM Raid Solutions <aacraid@microsemi.com> Cc: linux-scsi@vger.kernel.org Acked-by: Balsundar P <Balsundar.P@microchip.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>