Move buffer pointer back when data could not be written. Bug found by Mike Christie.
Signed-off-by: Kai Mäkisara <Kai.Makisara@xxxxxxxxxxx>
---
The patch is for 2.6.27 (against 2.6.26-rc9).
drivers/scsi/st.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 6e5a5bb..ccaf1ac 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -17,7 +17,7 @@
Last modified: 18-JAN-1998 Richard Gooch <rgooch@xxxxxxxxxxxxx> Devfs support
*/
-static const char *verstr = "20080224";
+static const char *verstr = "20080504";
#include <linux/module.h>
@@ -1663,6 +1663,7 @@ st_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos)
if (undone <= do_count) {
/* Only data from this write is not written */
count += undone;
+ b_point -= undone;
do_count -= undone;
if (STp->block_size)
blks = (transfer - undone) / STp->block_size;
--
1.5.4.3
