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firmware_loader: use -ETIMEDOUT instead of -EAGAIN in fw_load_sysfs_fallback

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The only motivation for using -EAGAIN in commit 0542ad88fb
("firmware loader: Fix _request_firmware_load() return val for fw load
abort") was to distinguish the error from -ENOMEM, and so there is no
real reason in keeping it. -EAGAIN is typically used to tell the
userspace to try something again and in this case re-using the sysfs
loading interface cannot be retried when a timeout happens, so the
return value is also bogus.

-ETIMEDOUT is received when the wait times out and returning that
is much more telling of what the reason for the failure was. So, just
propagate that instead of returning -EAGAIN.

Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Anirudh Rayabharam <mail@anirudhrb.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210728085107.4141-2-mail@anirudhrb.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Anirudh Rayabharam 2021-07-28 14:21:06 +05:30 committed by Greg Kroah-Hartman
parent 4d1014c181
commit 0d6434e10b
1 changed files with 0 additions and 2 deletions
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2
drivers/base/firmware_loader/fallback.c
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@ -535,8 +535,6 @@ static int fw_load_sysfs_fallback(struct fw_sysfs *fw_sysfs, long timeout)
if (fw_state_is_aborted(fw_priv)) {
if (retval == -ERESTARTSYS)
retval = -EINTR;
else
retval = -EAGAIN;
} else if (fw_priv->is_paged_buf && !fw_priv->data)
retval = -ENOMEM;