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authorAravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>2013-12-04 11:40:11 -0600
committerBorislav Petkov <bp@suse.de>2013-12-06 10:04:17 +0100
commit7f3f5240ce64b2b59e2a9a338b4a38931724192a (patch)
tree958606e908ec49d2a0e7b8c91de5c38d05fca800 /drivers/edac
parentc92132f5980666c7a52ecb53d98226c9986d32cd (diff)
downloadlinux-7f3f5240ce64b2b59e2a9a338b4a38931724192a.tar.bz2
amd64_edac: Fix condition to verify max channels allowed for F15 M30h
The value returned from 'f15_m30h_determine_channel' will always be 0x3 max. The condition (channel > 4 || channel < 0) works as hardware never returns a value of 4, but it leads to static checker analysis errors like http://marc.info/?l=linux-edac&m=138607615131951&w=2. Fix that. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com> Link: http://lkml.kernel.org/r/20131203130857.GA32170@elgon.mountain [ Boris: massage commit message a bit. ] Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'drivers/edac')
-rw-r--r--drivers/edac/amd64_edac.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index b53d0de17e15..e2079b2dfcb4 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -1578,7 +1578,7 @@ static int f15_m30h_match_to_this_node(struct amd64_pvt *pvt, unsigned range,
num_dcts_intlv, dct_sel);
/* Verify we stay within the MAX number of channels allowed */
- if (channel > 4 || channel < 0)
+ if (channel > 3)
return -EINVAL;
leg_mmio_hole = (u8) (dct_cont_base_reg >> 1 & BIT(0));