| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Fri, 15 Jul 2011 17:34:15 +0100 From: Alan Cox <alan@...rguk.ukuu.org.uk> To: greg@...ah.com, linux-kernel@...r.kernel.org Subject: [PATCH 08/15] gma500: skip getting modes via DDC on Moorestown From: Octavian Purdila <octavian.purdila@...el.com> Moorestown does not have a DDC bus, skip getting modes via DDC. This fixes the following bug: BUG: unable to handle kernel NULL pointer dereference at 00000010 IP: [<c1172ff7>] i2c_transfer+0x17/0xb0 *pde = 00000000 Oops: 0000 [#1] Call Trace: [<c1153ae9>] drm_do_probe_ddc_edid+0x59/0x90 [<c1153cb4>] drm_get_edid+0x24/0x250 [<c11805d2>] psb_intel_ddc_get_modes+0x22/0x60 [<c117fe11>] psb_intel_lvds_get_modes+0x21/0x80 Signed-off-by: Octavian Purdila <octavian.purdila@...el.com> Signed-off-by: Alan Cox <alan@...ux.intel.com> --- drivers/staging/gma500/psb_intel_lvds.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/staging/gma500/psb_intel_lvds.c b/drivers/staging/gma500/psb_intel_lvds.c index da6f5c8..53803b2 100644 --- a/drivers/staging/gma500/psb_intel_lvds.c +++ b/drivers/staging/gma500/psb_intel_lvds.c @@ -521,7 +521,8 @@ static int psb_intel_lvds_get_modes(struct drm_connector *connector) psb_intel_output->mode_dev; int ret = 0; - ret = psb_intel_ddc_get_modes(psb_intel_output); + if (!IS_MRST(dev)) + ret = psb_intel_ddc_get_modes(psb_intel_output); if (ret) return ret; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists