From: Dan Carpenter <dan.carpenter@oracle.com>
To: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexander.deucher@amd.com>,
Jerome Glisse <jglisse@redhat.com>,
dri-devel@lists.freedesktop.org, kernel-janitors@vger.kernel.org
Subject: [patch -next] drm/radeon/dpm/btc: off by one in btc_set_mc_special_registers()
Date: Fri, 27 Sep 2013 23:18:39 +0300 [thread overview]
Message-ID: <20130927201838.GJ6247@mwanda> (raw)
It should be ">=" instead of ">" here. The table->mc_reg_address[]
array has SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE (16) elements.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
Resend.
diff --git a/drivers/gpu/drm/radeon/btc_dpm.c b/drivers/gpu/drm/radeon/btc_dpm.c
index bab0185..55491e7 100644
--- a/drivers/gpu/drm/radeon/btc_dpm.c
+++ b/drivers/gpu/drm/radeon/btc_dpm.c
@@ -1913,7 +1913,7 @@ static int btc_set_mc_special_registers(struct radeon_device *rdev,
}
j++;
- if (j > SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE)
+ if (j >= SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE)
return -EINVAL;
tmp = RREG32(MC_PMG_CMD_MRS);
@@ -1928,7 +1928,7 @@ static int btc_set_mc_special_registers(struct radeon_device *rdev,
}
j++;
- if (j > SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE)
+ if (j >= SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE)
return -EINVAL;
break;
case MC_SEQ_RESERVE_M >> 2:
@@ -1942,7 +1942,7 @@ static int btc_set_mc_special_registers(struct radeon_device *rdev,
}
j++;
- if (j > SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE)
+ if (j >= SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE)
return -EINVAL;
break;
default:
next reply other threads:[~2013-09-27 20:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-27 20:18 Dan Carpenter [this message]
2013-10-02 15:33 ` [patch -next] drm/radeon/dpm/btc: off by one in btc_set_mc_special_registers() Alex Deucher
-- strict thread matches above, loose matches on Subject: below --
2013-07-01 16:35 Dan Carpenter
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