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path: root/drivers/gpu/drm/drm_edid.c
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Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
-rw-r--r--drivers/gpu/drm/drm_edid.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index ece03fc2d386..5a18b0df8285 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -149,8 +149,7 @@ EXPORT_SYMBOL(drm_edid_header_is_valid);
* Sanity check the EDID block (base or extension). Return 0 if the block
* doesn't check out, or 1 if it's valid.
*/
-static bool
-drm_edid_block_valid(u8 *raw_edid)
+bool drm_edid_block_valid(u8 *raw_edid)
{
int i;
u8 csum = 0;
@@ -203,6 +202,7 @@ bad:
}
return 0;
}
+EXPORT_SYMBOL(drm_edid_block_valid);
/**
* drm_edid_is_valid - sanity check EDID data
@@ -226,7 +226,6 @@ bool drm_edid_is_valid(struct edid *edid)
}
EXPORT_SYMBOL(drm_edid_is_valid);
-#define DDC_ADDR 0x50
#define DDC_SEGMENT_ADDR 0x30
/**
* Get EDID information via I2C.
@@ -266,6 +265,11 @@ drm_do_probe_ddc_edid(struct i2c_adapter *adapter, unsigned char *buf,
}
};
ret = i2c_transfer(adapter, msgs, 2);
+ if (ret == -ENXIO) {
+ DRM_DEBUG_KMS("drm: skipping non-existent adapter %s\n",
+ adapter->name);
+ break;
+ }
} while (ret != 2 && --retries);
return ret == 2 ? 0 : -1;
@@ -745,7 +749,7 @@ drm_mode_std(struct drm_connector *connector, struct edid *edid,
*/
mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {
- kfree(mode);
+ drm_mode_destroy(dev, mode);
mode = drm_gtf_mode_complex(dev, hsize, vsize,
vrefresh_rate, 0, 0,
drm_gtf2_m(edid),