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[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>
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@ -209,10 +209,13 @@ int nvidia_probe_i2c_connector(struct fb_info *info, int conn, u8 **out_edid)
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if (!edid && conn == 1) {
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/* try to get from firmware */
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edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
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if (edid)
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memcpy(edid, fb_firmware_edid(info->device),
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EDID_LENGTH);
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const u8 *e = fb_firmware_edid(info->device);
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if (e != NULL) {
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edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
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if (edid)
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memcpy(edid, e, EDID_LENGTH);
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}
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}
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if (out_edid)
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