drop queue-4.14/mips-make-sure-dt-memory-regions-are-valid.patch

[thirdparty/kernel/stable-queue.git] / releases / 2.6.32.1 / scsi-megaraid_sas-fix-64-bit-sense-pointer-truncation.patch

From 7b2519afa1abd1b9f63aa1e90879307842422dae Mon Sep 17 00:00:00 2001
From: Yang, Bo <Bo.Yang@lsi.com>
Date: Tue, 6 Oct 2009 14:52:20 -0600
Subject: SCSI: megaraid_sas: fix 64 bit sense pointer truncation

From: Yang, Bo <Bo.Yang@lsi.com>

commit 7b2519afa1abd1b9f63aa1e90879307842422dae upstream.

The current sense pointer is cast to a u32 pointer, which can truncate
on 64 bits.  Fix by using unsigned long instead.

Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/scsi/megaraid/megaraid_sas.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -3032,7 +3032,7 @@ megasas_mgmt_fw_ioctl(struct megasas_ins
 	int error = 0, i;
 	void *sense = NULL;
 	dma_addr_t sense_handle;
-	u32 *sense_ptr;
+	unsigned long *sense_ptr;
 
 	memset(kbuff_arr, 0, sizeof(kbuff_arr));
 
@@ -3109,7 +3109,7 @@ megasas_mgmt_fw_ioctl(struct megasas_ins
 		}
 
 		sense_ptr =
-		    (u32 *) ((unsigned long)cmd->frame + ioc->sense_off);
+		(unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off);
 		*sense_ptr = sense_handle;
 	}
 
@@ -3140,8 +3140,8 @@ megasas_mgmt_fw_ioctl(struct megasas_ins
 		 * sense_ptr points to the location that has the user
 		 * sense buffer address
 		 */
-		sense_ptr = (u32 *) ((unsigned long)ioc->frame.raw +
-				     ioc->sense_off);
+		sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw +
+				ioc->sense_off);
 
 		if (copy_to_user((void __user *)((unsigned long)(*sense_ptr)),
 				 sense, ioc->sense_len)) {