arcmsr_hba: Missing slab.h include

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/scsi/arcmsr/arcmsr_hba.c

@@ -56,6 +56,7 @@
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/timer.h>
+#include <linux/slab.h>
 #include <linux/pci.h>
 #include <linux/aer.h>
 #include <asm/dma.h>