Commit 3a73e8c7 authored by Nate Dailey's avatar Nate Dailey Committed by James Bottomley
Browse files

[SCSI] drivers/scsi/sr_ioctl.c: check for failed allocation 



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: default avatarNate Dailey <nate.dailey@stratus.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 0bdcd78e

drivers/scsi/sr_ioctl.c

+3 −0
Original line number Diff line number Diff line
@@ -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 */