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sound: oss: Use kernel_read_file_from_path() for mod_firmware_load()

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Since recently we have kernel_read_file_from_path(), and it's doing
the same thing as our own home-baked mod_firmware_load().  Let's use
the official API function and clean up the old code.

Signed-off-by: Takashi Iwai <[email protected]>
This commit is contained in:
Takashi Iwai 2016-07-25 15:39:53 +02:00
commit 0984d159c8
3 changed files with 28 additions and 79 deletions
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29
sound/oss/sound_firmware.h
View file

@ -1,2 +1,29 @@
extern int mod_firmware_load(const char *fn, char **fp);
#include <linux/fs.h>
/**
* mod_firmware_load - load sound driver firmware
* @fn: filename
* @fp: return for the buffer.
*
* Load the firmware for a sound module (up to 128K) into a buffer.
* The buffer is returned in *fp. It is allocated with vmalloc so is
* virtually linear and not DMAable. The caller should free it with
* vfree when finished.
*
* The length of the buffer is returned on a successful load, the
* value zero on a failure.
*
* Caution: This API is not recommended. Firmware should be loaded via
* request_firmware.
*/
static inline int mod_firmware_load(const char *fn, char **fp)
{
loff_t size;
int err;
err = kernel_read_file_from_path((char *)fn, (void **)fp, &size,
131072, READING_FIRMWARE);
if (err < 0)
return 0;
return size;
}