[SCSI] aic94xx: Match request_firmware with release_firmware

The vmalloc() blob holding the sequencer firmware wasn't being released at
module unload time, which resulted in a memory leak.

Signed-off-by: Alexis Bruemmer <alexisb@us.ibm.com>
Acked-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/aic94xx/aic94xx_seq.c b/drivers/scsi/aic94xx/aic94xx_seq.c
index 8451125..21569ec 100644
--- a/drivers/scsi/aic94xx/aic94xx_seq.c
+++ b/drivers/scsi/aic94xx/aic94xx_seq.c
@@ -1232,6 +1232,13 @@
 	return asd_seq_unpause_lseq(asd_ha, lseq);
 }
 
+int asd_release_firmware(void)
+{
+	if (sequencer_fw)
+		release_firmware(sequencer_fw);
+	return 0;
+}
+
 static int asd_request_firmware(struct asd_ha_struct *asd_ha)
 {
 	int err, i;