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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2008-07-25 01:48:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 10:53:44 -0700 |
| commit | f37e66173e0cc09b4e5a89eb0294abbefc15f435 (patch) | |
| tree | a96d0e759aca8ad9edeff0620765d99ed24d632f | |
| parent | ec905a18656daa4d9300bad2bebc02d5dba7883d (diff) | |
| download | linux-stable-f37e66173e0cc09b4e5a89eb0294abbefc15f435.tar.gz linux-stable-f37e66173e0cc09b4e5a89eb0294abbefc15f435.tar.bz2 linux-stable-f37e66173e0cc09b4e5a89eb0294abbefc15f435.zip | |
firmware: use memory_read_from_buffer()
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Markus Rechberger <markus.rechberger@amd.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/base/firmware_class.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index b0be1d18fee2..c9c92b00fd55 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -184,7 +184,7 @@ firmware_data_read(struct kobject *kobj, struct bin_attribute *bin_attr, struct device *dev = to_dev(kobj); struct firmware_priv *fw_priv = dev_get_drvdata(dev); struct firmware *fw; - ssize_t ret_count = count; + ssize_t ret_count; mutex_lock(&fw_lock); fw = fw_priv->fw; @@ -192,14 +192,8 @@ firmware_data_read(struct kobject *kobj, struct bin_attribute *bin_attr, ret_count = -ENODEV; goto out; } - if (offset > fw->size) { - ret_count = 0; - goto out; - } - if (offset + ret_count > fw->size) - ret_count = fw->size - offset; - - memcpy(buffer, fw->data + offset, ret_count); + ret_count = memory_read_from_buffer(buffer, count, &offset, + fw->data, fw->size); out: mutex_unlock(&fw_lock); return ret_count; |