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authorJordan Crouse <jordan.crouse@amd.com>2007-08-01 23:46:42 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-08-01 23:46:42 +0200
commit32a70a817acbb96fcfcc7543932222467c771207 (patch)
tree9595b9920f97032a3f2c473c9a2479fd9e66ea6c /drivers
parent8d4fbcfbe0a4bfc73e7f0297c59ae514e1f1436f (diff)
downloadop-kernel-dev-32a70a817acbb96fcfcc7543932222467c771207.zip
op-kernel-dev-32a70a817acbb96fcfcc7543932222467c771207.tar.gz
ide: Fix an overrun found in the CS5535 IDE driver
As found by the Coverity checker, and reported by Adrian Bunk, this fixes a overrun error in the CS5535 IDE driver. Somebody got a little excited with the if() statement - the CS5535 only supports UDMA 0-4. Bart: Not a bug per se since the upper layer will never feed this function with speed > XFER_UDMA_4 (thanks to ->ultra_mask being set to 0x1f). Worth fixing anyway. Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/ide/pci/cs5535.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ide/pci/cs5535.c b/drivers/ide/pci/cs5535.c
index ce44e38..9bd526d 100644
--- a/drivers/ide/pci/cs5535.c
+++ b/drivers/ide/pci/cs5535.c
@@ -116,7 +116,7 @@ static void cs5535_set_speed(ide_drive_t *drive, u8 speed)
reg &= 0x80000000UL; /* Preserve the PIO format bit */
- if (speed >= XFER_UDMA_0 && speed <= XFER_UDMA_7)
+ if (speed >= XFER_UDMA_0 && speed <= XFER_UDMA_4)
reg |= cs5535_udma_timings[speed - XFER_UDMA_0];
else if (speed >= XFER_MW_DMA_0 && speed <= XFER_MW_DMA_2)
reg |= cs5535_mwdma_timings[speed - XFER_MW_DMA_0];
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