LXR linux/sound/oss/sound

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#include <linux/fs.h>
   3
   4/**
   5 *      mod_firmware_load - load sound driver firmware
   6 *      @fn: filename
   7 *      @fp: return for the buffer.
   8 *
   9 *      Load the firmware for a sound module (up to 128K) into a buffer.
  10 *      The buffer is returned in *fp. It is allocated with vmalloc so is
  11 *      virtually linear and not DMAable. The caller should free it with
  12 *      vfree when finished.
  13 *
  14 *      The length of the buffer is returned on a successful load, the
  15 *      value zero on a failure.
  16 *
  17 *      Caution: This API is not recommended. Firmware should be loaded via
  18 *      request_firmware.
  19 */
  20static inline int mod_firmware_load(const char *fn, char **fp)
  21{
  22        loff_t size;
  23        int err;
  24
  25        err = kernel_read_file_from_path(fn, (void **)fp, &size,
  26                                         131072, READING_FIRMWARE);
  27        if (err < 0)
  28                return 0;
  29        return size;
  30}
  31