gru: fixes to grudump utility

Minor fixes to the SGI GRU grudump facility:
	- fix address where user data is written
	- add gru number to data passed to user
	- indicate if context is locked

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/misc/sgi-gru/grukdump.c b/drivers/misc/sgi-gru/grukdump.c
index 7b1bdf3906ba..0f9dd3e64b57 100644
--- a/drivers/misc/sgi-gru/grukdump.c
+++ b/drivers/misc/sgi-gru/grukdump.c
@@ -26,7 +26,7 @@
 
 static int gru_user_copy_handle(void __user **dp, void *s)
 {
-        if (copy_to_user(dp, s, GRU_HANDLE_BYTES))
+        if (copy_to_user(*dp, s, GRU_HANDLE_BYTES))
                 return -1;
         *dp += GRU_HANDLE_BYTES;
         return 0;
@@ -109,7 +109,7 @@ static int gru_dump_context(struct gru_state *gru, int ctxnum,
 {
         struct gru_dump_context_header hdr;
         struct gru_dump_context_header __user *uhdr = ubuf;
-        struct gru_context_configuration_handle *cch;
+        struct gru_context_configuration_handle *cch, *ubufcch;
         struct gru_thread_state *gts;
         int try, cch_locked, cbrcnt = 0, dsrcnt = 0, bytes = 0, ret = 0;
         void *grubase;
@@ -125,8 +125,11 @@ static int gru_dump_context(struct gru_state *gru, int ctxnum,
         }
 
         ubuf += sizeof(hdr);
+        ubufcch = ubuf;
         if (gru_user_copy_handle(&ubuf, cch))
                 goto fail;
+        if (cch_locked)
+                ubufcch->delresp = 0;
         bytes = sizeof(hdr) + GRU_CACHE_LINE_BYTES;
 
         if (cch_locked || !lock_cch) {
@@ -155,6 +158,7 @@ static int gru_dump_context(struct gru_state *gru, int ctxnum,
                 return ret;
 
         hdr.magic = GRU_DUMP_MAGIC;
+        hdr.gid = gru->gs_gid;
         hdr.ctxnum = ctxnum;
         hdr.cbrcnt = cbrcnt;
         hdr.dsrcnt = dsrcnt;