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| author | Luis R. Rodriguez <mcgrof@suse.com> | 2016-02-28 21:57:55 +0100 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2016-02-29 09:08:06 +0100 |
| commit | 8e516aa52cea98b23e14c5d67fe74147e73d25f7 (patch) | |
| tree | a2c715ba85f879276ed37d0e7229064f6bdaaff8 /drivers/base | |
| parent | tpm_tis: fix build warning with tpm_tis_resume (diff) | |
| download | linux-8e516aa52cea98b23e14c5d67fe74147e73d25f7.tar.xz linux-8e516aa52cea98b23e14c5d67fe74147e73d25f7.zip | |
firmware: change kernel read fail to dev_dbg()
When we now use the new kernel_read_file_from_path() we
are reporting a failure when we iterate over all the paths
possible for firmware. Before using kernel_read_file_from_path()
we only reported a failure once we confirmed a file existed
with filp_open() but failed with fw_read_file_contents().
With kernel_read_file_from_path() both are done for us and
we obviously are now reporting too much information given that
some optional paths will always fail and clutter the logs.
fw_get_filesystem_firmware() already has a check for failure
and uses an internal flag, FW_OPT_NO_WARN, but this does not
let us capture other unxpected errors. This enables that
as changed by Neil via commit:
"firmware: Be a bit more verbose about direct firmware loading failure"
Reported-by: Heiner Kallweit <hkallweit1@gmail.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/firmware_class.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index a414008ea64c..f3f7215ad378 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -329,8 +329,12 @@ static int fw_get_filesystem_firmware(struct device *device, rc = kernel_read_file_from_path(path, &buf->data, &size, INT_MAX, READING_FIRMWARE); if (rc) { - dev_warn(device, "loading %s failed with error %d\n", - path, rc); + if (rc == -ENOENT) + dev_dbg(device, "loading %s failed with error %d\n", + path, rc); + else + dev_warn(device, "loading %s failed with error %d\n", + path, rc); continue; } dev_dbg(device, "direct-loading %s\n", buf->fw_id); |