[SCSI] drivers/scsi/sr_ioctl.c: check for failed allocation
authorNate Dailey <nhdailey@verizon.net>
Thu, 21 Apr 2005 20:14:05 +0000 (16:14 -0400)
committerJames Bottomley <jejb@mulgrave.(none)>
Thu, 21 Apr 2005 20:14:05 +0000 (16:14 -0400)
I noticed a case in sr_ioctl.c's sr_get_mcn where a buffer is
allocated, but the pointer isn't checked for null.

Signed-off-by: Nate Dailey <nate.dailey@stratus.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
drivers/scsi/sr_ioctl.c

index 3471be05779a5220e40eb3e67d32ad3ee7b6bd8e..82d68fdb15484520abd80d1aa603d2395a86ad6b 100644 (file)
@@ -281,6 +281,9 @@ int sr_get_mcn(struct cdrom_device_info *cdi, struct cdrom_mcn *mcn)
        char *buffer = kmalloc(32, GFP_KERNEL | SR_GFP_DMA(cd));
        int result;
 
+       if (!buffer)
+               return -ENOMEM;
+
        memset(&cgc, 0, sizeof(struct packet_command));
        cgc.cmd[0] = GPCMD_READ_SUBCHANNEL;
        cgc.cmd[2] = 0x40;      /* I do want the subchannel info */