[PATCH 3.11 84/94] drm/radeon: make missing smc ucode non-fatal (r7xx-SI)

[Greg Kroah-Hartman]

3.11-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@xxxxxxx>

commit d83671126dc8e7c0b56c9970ea5ffd08c3b0c645 upstream.

Prevent driver load problems if the smc is missing.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=63011

Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Tested-by: Mikko Rapeli <mikko.rapeli@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/gpu/drm/radeon/ni.c   |    1 +
 drivers/gpu/drm/radeon/r600.c |    1 +
 drivers/gpu/drm/radeon/si.c   |    1 +
 3 files changed, 3 insertions(+)

--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -800,6 +800,7 @@ int ni_init_microcode(struct radeon_devi
 			       fw_name);
 			release_firmware(rdev->smc_fw);
 			rdev->smc_fw = NULL;
+			err = 0;
 		} else if (rdev->smc_fw->size != smc_req_size) {
 			printk(KERN_ERR
 			       "ni_mc: Bogus length %zu in firmware \"%s\"\n",
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2310,6 +2310,7 @@ int r600_init_microcode(struct radeon_de
 			       fw_name);
 			release_firmware(rdev->smc_fw);
 			rdev->smc_fw = NULL;
+			err = 0;
 		} else if (rdev->smc_fw->size != smc_req_size) {
 			printk(KERN_ERR
 			       "smc: Bogus length %zu in firmware \"%s\"\n",
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -1669,6 +1669,7 @@ static int si_init_microcode(struct rade
 		       fw_name);
 		release_firmware(rdev->smc_fw);
 		rdev->smc_fw = NULL;
+		err = 0;
 	} else if (rdev->smc_fw->size != smc_req_size) {
 		printk(KERN_ERR
 		       "si_smc: Bogus length %zu in firmware \"%s\"\n",


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