The patch below does not apply to the 3.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

>From d83671126dc8e7c0b56c9970ea5ffd08c3b0c645 Mon Sep 17 00:00:00 2001
From: Alex Deucher <[email protected]>
Date: Wed, 16 Oct 2013 11:36:30 -0400
Subject: [PATCH] drm/radeon: make missing smc ucode non-fatal (r7xx-SI)

Prevent driver load problems if the smc is missing.

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

Signed-off-by: Alex Deucher <[email protected]>
Tested-by: Mikko Rapeli <[email protected]>
Cc: [email protected]

diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 93c1f9ef5da9..cac2866d79da 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -804,6 +804,7 @@ int ni_init_microcode(struct radeon_device *rdev)
                               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",
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 2a1b1876b431..f9be22062df1 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2302,6 +2302,7 @@ int r600_init_microcode(struct radeon_device *rdev)
                               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",
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index d4652af425b8..d96f7cbca0a1 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -1681,6 +1681,7 @@ static int si_init_microcode(struct radeon_device *rdev)
                       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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