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Date: Thu, 6 Jun 2013 20:01:48 +0800 From: Ming Lei <ming.lei@...onical.com> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: linux-kernel@...r.kernel.org, Ming Lei <ming.lei@...onical.com> Subject: [PATCH v1 2/4] firmware loader: simplify holding module for request_firmware 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.lei@...onical.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 caaddef..6ede229 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__); @@ -1131,7 +1126,13 @@ 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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