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

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 <tiwai@suse.de>

diff --git a/sound/Makefile b/sound/Makefile
index 7732070..c41bdf5 100644 (file)
--- a/sound/Makefile
+++ b/sound/Makefile
@@ -2,7 +2,6 @@
 #
 
 obj-$(CONFIG_SOUND) += soundcore.o
-obj-$(CONFIG_SOUND_PRIME) += sound_firmware.o
 obj-$(CONFIG_SOUND_PRIME) += oss/
 obj-$(CONFIG_DMASOUND) += oss/
 obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ sh/ synth/ usb/ \

diff --git a/sound/oss/sound_firmware.h b/sound/oss/sound_firmware.h
index 0a0cbfd..da4c67e 100644 (file)
--- a/sound/oss/sound_firmware.h
+++ b/sound/oss/sound_firmware.h
@@ -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;
+}

diff --git a/sound/sound_firmware.c b/sound/sound_firmware.c
deleted file mode 100644 (file)
index 0263476..0000000
--- a/sound/sound_firmware.c
+++ /dev/null
@@ -1,77 +0,0 @@
-#include <linux/vmalloc.h>
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <asm/uaccess.h>
-#include "oss/sound_firmware.h"
-
-static int do_mod_firmware_load(const char *fn, char **fp)
-{
-       struct file* filp;
-       long l;
-       char *dp;
-
-       filp = filp_open(fn, 0, 0);
-       if (IS_ERR(filp))
-       {
-               printk(KERN_INFO "Unable to load '%s'.\n", fn);
-               return 0;
-       }
-       l = i_size_read(file_inode(filp));
-       if (l <= 0 || l > 131072)
-       {
-               printk(KERN_INFO "Invalid firmware '%s'\n", fn);
-               fput(filp);
-               return 0;
-       }
-       dp = vmalloc(l);
-       if (dp == NULL)
-       {
-               printk(KERN_INFO "Out of memory loading '%s'.\n", fn);
-               fput(filp);
-               return 0;
-       }
-       if (kernel_read(filp, 0, dp, l) != l)
-       {
-               printk(KERN_INFO "Failed to read '%s'.\n", fn);
-               vfree(dp);
-               fput(filp);
-               return 0;
-       }
-       fput(filp);
-       *fp = dp;
-       return (int) l;
-}
-
-/**
- *     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.
- */
- 
-int mod_firmware_load(const char *fn, char **fp)
-{
-       int r;
-       mm_segment_t fs = get_fs();
-
-       set_fs(get_ds());
-       r = do_mod_firmware_load(fn, fp);
-       set_fs(fs);
-       return r;
-}
-EXPORT_SYMBOL(mod_firmware_load);
-
-MODULE_LICENSE("GPL");