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authorJohannes Berg <johannes@sipsolutions.net>2009-10-29 12:36:02 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2009-12-11 11:24:52 -0800
commit9ebfbd45f9d4ee9cd72529cf99e5f300eb398e67 (patch)
tree6ad661c4b38d0fad8a88c4a0d28997e9303632f2 /drivers/serial
parent03d673e6af6490371aaf64dfe1f84c658c48b71d (diff)
downloadop-kernel-dev-9ebfbd45f9d4ee9cd72529cf99e5f300eb398e67.zip
op-kernel-dev-9ebfbd45f9d4ee9cd72529cf99e5f300eb398e67.tar.gz
firmware_class: make request_firmware_nowait more useful
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>
Diffstat (limited to 'drivers/serial')
-rw-r--r--drivers/serial/ucc_uart.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/serial/ucc_uart.c b/drivers/serial/ucc_uart.c
index 46de564..465f2fa 100644
--- a/drivers/serial/ucc_uart.c
+++ b/drivers/serial/ucc_uart.c
@@ -1179,16 +1179,18 @@ static void uart_firmware_cont(const struct firmware *fw, void *context)
if (firmware->header.length != fw->size) {
dev_err(dev, "invalid firmware\n");
- return;
+ goto out;
}
ret = qe_upload_firmware(firmware);
if (ret) {
dev_err(dev, "could not load firmware\n");
- return;
+ goto out;
}
firmware_loaded = 1;
+ out:
+ release_firmware(fw);
}
static int ucc_uart_probe(struct of_device *ofdev,
@@ -1247,7 +1249,7 @@ static int ucc_uart_probe(struct of_device *ofdev,
*/
ret = request_firmware_nowait(THIS_MODULE,
FW_ACTION_HOTPLUG, filename, &ofdev->dev,
- &ofdev->dev, uart_firmware_cont);
+ GFP_KERNEL, &ofdev->dev, uart_firmware_cont);
if (ret) {
dev_err(&ofdev->dev,
"could not load firmware %s\n",
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