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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2008-07-25 01:48:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 10:53:44 -0700 |
| commit | 25377479de7539fdc871a0f0ecaa39da42353bbc (patch) | |
| tree | 646e6e55935b26fcb3f5d489b9f08ab021c9ddb3 | |
| parent | d991696263a704be7f41ac186f1a0ed17963c260 (diff) | |
| download | linux-stable-25377479de7539fdc871a0f0ecaa39da42353bbc.tar.gz linux-stable-25377479de7539fdc871a0f0ecaa39da42353bbc.tar.bz2 linux-stable-25377479de7539fdc871a0f0ecaa39da42353bbc.zip | |
dell_rbu: use memory_read_from_buffer()
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Abhay Salunke <Abhay_Salunke@dell.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/firmware/dell_rbu.c | 28 |
1 files changed, 3 insertions, 25 deletions
diff --git a/drivers/firmware/dell_rbu.c b/drivers/firmware/dell_rbu.c index 7430e218cda6..13946ebd77d6 100644 --- a/drivers/firmware/dell_rbu.c +++ b/drivers/firmware/dell_rbu.c @@ -507,11 +507,6 @@ static ssize_t read_packet_data(char *buffer, loff_t pos, size_t count) static ssize_t read_rbu_mono_data(char *buffer, loff_t pos, size_t count) { - unsigned char *ptemp = NULL; - size_t bytes_left = 0; - size_t data_length = 0; - ssize_t ret_count = 0; - /* check to see if we have something to return */ if ((rbu_data.image_update_buffer == NULL) || (rbu_data.bios_image_size == 0)) { @@ -519,28 +514,11 @@ static ssize_t read_rbu_mono_data(char *buffer, loff_t pos, size_t count) "bios_image_size %lu\n", rbu_data.image_update_buffer, rbu_data.bios_image_size); - ret_count = -ENOMEM; - goto read_rbu_data_exit; - } - - if (pos > rbu_data.bios_image_size) { - ret_count = 0; - goto read_rbu_data_exit; + return -ENOMEM; } - bytes_left = rbu_data.bios_image_size - pos; - data_length = min(bytes_left, count); - - ptemp = rbu_data.image_update_buffer; - memcpy(buffer, (ptemp + pos), data_length); - - if ((pos + count) > rbu_data.bios_image_size) - /* this was the last copy */ - ret_count = bytes_left; - else - ret_count = count; - read_rbu_data_exit: - return ret_count; + return memory_read_from_buffer(buffer, count, &pos, + rbu_data.image_update_buffer, rbu_data.bios_image_size); } static ssize_t read_rbu_data(struct kobject *kobj, |