module reference doesn't cover direct loading path, so this patch
simply holds the module in the whole life time of request_firmware()
to fix the problem.
Signed-off-by: Ming Lei <ming....@canonical.com>
---
drivers/base/firmware_class.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 34d47e3..c743409 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -523,8 +523,6 @@ static void fw_dev_release(struct device *dev)
struct firmware_priv *fw_priv = to_firmware_priv(dev);
kfree(fw_priv);
-
- module_put(THIS_MODULE);
}
static int firmware_uevent(struct device *dev, struct kobj_uevent_env *env)
@@ -852,9 +850,6 @@ static int _request_firmware_load(struct firmware_priv
*fw_priv, bool uevent,
dev_set_uevent_suppress(f_dev, true);
- /* Need to pin this module until class device is destroyed */
- __module_get(THIS_MODULE);
-
retval = device_add(f_dev);
if (retval) {
dev_err(f_dev, "%s: device_register failed\n", __func__);
@@ -1127,7 +1122,13 @@ int
request_firmware(const struct firmware **firmware_p, const char *name,
struct device *device)
{
- return _request_firmware(firmware_p, name, device, true, false);
+ int ret;
+
+ /* Need to pin this module until return */
+ __module_get(THIS_MODULE);
+ ret = _request_firmware(firmware_p, name, device, true, false);
+ module_put(THIS_MODULE);
+ return ret;
}
EXPORT_SYMBOL(request_firmware);
--
1.7.9.5
--
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