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firmware_class: make request_firmware_nowait more useful

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Unfortunately, one cannot hold on to the struct firmware
that request_firmware_nowait() hands off, which is needed
in some cases. Allow this by requiring the callback to
free it (via release_firmware).

Additionally, give it a gfp_t parameter -- all the current
users call it from a GFP_KERNEL context so the GFP_ATOMIC
isn't necessary. This also marks an API break which is
useful in a sense, although that is obviously not the
primary purpose of this change.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Ming Lei <tom.leiming@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Woodhouse <David.Woodhouse@intel.com>
Cc: Pavel Roskin <proski@gnu.org>
Cc: Abhay Salunke <abhay_salunke@dell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Johannes Berg
2009-10-29 12:36:02 +01:00
committed by Greg Kroah-Hartman
parent 03d673e6af
commit 9ebfbd45f9
7 changed files with 33 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/usb/atm/ueagle-atm.c
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@@ -667,12 +667,12 @@ static void uea_upload_pre_firmware(const struct firmware *fw_entry, void *conte
else
uea_info(usb, "firmware uploaded\n");
uea_leaves(usb);
return;
goto err;
err_fw_corrupted:
uea_err(usb, "firmware is corrupted\n");
err:
release_firmware(fw_entry);
uea_leaves(usb);
}
@@ -705,7 +705,8 @@ static int uea_load_firmware(struct usb_device *usb, unsigned int ver)
break;
}
ret = request_firmware_nowait(THIS_MODULE, 1, fw_name, &usb->dev, usb, uea_upload_pre_firmware);
ret = request_firmware_nowait(THIS_MODULE, 1, fw_name, &usb->dev,
GFP_KERNEL, usb, uea_upload_pre_firmware);
if (ret)
uea_err(usb, "firmware %s is not available\n", fw_name);
else