msm: ADSPRPC: Fix bugs in page offset
Calculate page start so the offset is always less then the minimum
page size.
Change-Id: I5dc2cf5052a16e9f78862eb79f6141e2b7502ba2
Acked-by: Anatoly Yakovenko <anatolyy@qti.qualcomm.com>
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
diff --git a/drivers/char/adsprpc.c b/drivers/char/adsprpc.c
index eeb75d1..73fe5d6 100644
--- a/drivers/char/adsprpc.c
+++ b/drivers/char/adsprpc.c
@@ -349,7 +349,6 @@
args = (void *)((char *)pbuf->virt + used);
rlen = pbuf->size - used;
for (i = 0; i < inbufs + outbufs; ++i) {
- int num;
rpra[i].buf.len = pra[i].buf.len;
if (!rpra[i].buf.len)
@@ -376,18 +375,12 @@
args = pbuf->virt;
rlen = pbuf->size;
}
- num = buf_num_pages(args, pra[i].buf.len);
- if (pbuf == ibuf) {
- list[i].num = num;
- list[i].pgidx = 0;
- } else {
- list[i].num = 1;
- pages[list[i].pgidx].addr =
- buf_page_start((void *)(pbuf->phys +
- (pbuf->size - rlen)));
- pages[list[i].pgidx].size =
- buf_page_size(pra[i].buf.len);
- }
+ list[i].num = 1;
+ pages[list[i].pgidx].addr =
+ buf_page_start((void *)(pbuf->phys +
+ (pbuf->size - rlen)));
+ pages[list[i].pgidx].size =
+ buf_page_size(pra[i].buf.len);
if (i < inbufs) {
if (!kernel) {
VERIFY(err, 0 == copy_from_user(args,