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path: root/drivers/scsi/sr_ioctl.c
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Diffstat (limited to 'drivers/scsi/sr_ioctl.c')
-rw-r--r--drivers/scsi/sr_ioctl.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/sr_ioctl.c b/drivers/scsi/sr_ioctl.c
index 3471be05779..82d68fdb154 100644
--- a/drivers/scsi/sr_ioctl.c
+++ b/drivers/scsi/sr_ioctl.c
@@ -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 */