Messages in this thread Patch in this message | | | From | "Luis R. Rodriguez" <> | Subject | [PATCH v4 2/5] firmware: send -EINTR on signal abort on fallback mechanism | Date | Thu, 20 Jul 2017 13:13:39 -0700 |
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Right now we send -EAGAIN to a syfs write which got interrupted. Userspace can't tell what happened though, send -EINTR if we were killed due to a signal so userspace can tell things apart.
This is only applicable to the fallback mechanism.
Reported-by: Martin Fuzzey <mfuzzey@parkeon.com> Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org> --- drivers/base/firmware_class.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index bfbe1e154128..0125e605eb34 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -1085,9 +1085,12 @@ static int _request_firmware_load(struct firmware_priv *fw_priv, mutex_unlock(&fw_lock); } - if (fw_state_is_aborted(&buf->fw_st)) - retval = -EAGAIN; - else if (buf->is_paged_buf && !buf->data) + if (fw_state_is_aborted(&buf->fw_st)) { + if (retval == -ERESTARTSYS) + retval = -EINTR; + else + retval = -EAGAIN; + } else if (buf->is_paged_buf && !buf->data) retval = -ENOMEM; device_del(f_dev); -- 2.11.0
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