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| author | Antonino A. Daplas <adaplas@gmail.com> | 2005-09-14 14:19:15 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-14 14:34:17 -0700 |
| commit | 0ed8e048c9e11e69ec951f94066105e80cdc59fd (patch) | |
| tree | aaebd53676e1629c57cbbb90f24d1a4d6ad598d6 /drivers/video | |
| parent | 8fd9808aec0198b25ff9f8bb19508d9492f86920 (diff) | |
| download | linux-0ed8e048c9e11e69ec951f94066105e80cdc59fd.tar.gz linux-0ed8e048c9e11e69ec951f94066105e80cdc59fd.tar.bz2 linux-0ed8e048c9e11e69ec951f94066105e80cdc59fd.zip | |
[PATCH] nv_i2c oops fix
The call to fb_firmware_edid may return NULL but this is not checked before
trying to memcpy using this pointer.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/nvidia/nv_i2c.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/video/nvidia/nv_i2c.c b/drivers/video/nvidia/nv_i2c.c index ace484fa61ce..12f2884d3f0b 100644 --- a/drivers/video/nvidia/nv_i2c.c +++ b/drivers/video/nvidia/nv_i2c.c @@ -209,10 +209,13 @@ int nvidia_probe_i2c_connector(struct fb_info *info, int conn, u8 **out_edid) if (!edid && conn == 1) { /* try to get from firmware */ - edid = kmalloc(EDID_LENGTH, GFP_KERNEL); - if (edid) - memcpy(edid, fb_firmware_edid(info->device), - EDID_LENGTH); + const u8 *e = fb_firmware_edid(info->device); + + if (e != NULL) { + edid = kmalloc(EDID_LENGTH, GFP_KERNEL); + if (edid) + memcpy(edid, e, EDID_LENGTH); + } } if (out_edid) |