1 files changed, 17 insertions, 16 deletions

diff --git a/ui-patch.c b/ui-patch.c
index bb39294..1dbb39d 100644
--- a/ui-patch.c
+++ b/ui-patch.c
@@ -11,48 +11,49 @@
 #include "html.h"
 #include "ui-shared.h"
 
-void cgit_print_patch(char *hex, const char *old_rev, const char *prefix)
+void cgit_print_patch(const char *new_rev, const char *old_rev,
+                      const char *prefix)
 {
         struct rev_info rev;
         struct commit *commit;
-        unsigned char sha1[20], old_sha1[20];
+        unsigned char new_rev_sha1[20], old_rev_sha1[20];
         char rev_range[2 * 40 + 3];
         char *rev_argv[] = { NULL, "--reverse", "--format=email", rev_range };
         char *patchname;
 
-        if (!hex)
-                hex = ctx.qry.head;
+        if (!new_rev)
+                new_rev = ctx.qry.head;
 
-        if (get_sha1(hex, sha1)) {
-                cgit_print_error("Bad object id: %s", hex);
+        if (get_sha1(new_rev, new_rev_sha1)) {
+                cgit_print_error("Bad object id: %s", new_rev);
                 return;
         }
-        commit = lookup_commit_reference(sha1);
+        commit = lookup_commit_reference(new_rev_sha1);
         if (!commit) {
-                cgit_print_error("Bad commit reference: %s", hex);
+                cgit_print_error("Bad commit reference: %s", new_rev);
                 return;
         }
 
         if (old_rev) {
-                if (get_sha1(old_rev, old_sha1)) {
+                if (get_sha1(old_rev, old_rev_sha1)) {
                         cgit_print_error("Bad object id: %s", old_rev);
                         return;
                 }
-                if (!lookup_commit_reference(old_sha1)) {
+                if (!lookup_commit_reference(old_rev_sha1)) {
                         cgit_print_error("Bad commit reference: %s", old_rev);
                         return;
                 }
         } else if (commit->parents && commit->parents->item) {
-                hashcpy(old_sha1, commit->parents->item->object.sha1);
+                hashcpy(old_rev_sha1, commit->parents->item->object.sha1);
         } else {
-                hashclr(old_sha1);
+                hashclr(old_rev_sha1);
         }
 
-        if (is_null_sha1(old_sha1)) {
-                memcpy(rev_range, sha1_to_hex(sha1), 41);
+        if (is_null_sha1(old_rev_sha1)) {
+                memcpy(rev_range, sha1_to_hex(new_rev_sha1), 41);
         } else {
-                sprintf(rev_range, "%s..%s", sha1_to_hex(old_sha1),
-                        sha1_to_hex(sha1));
+                sprintf(rev_range, "%s..%s", sha1_to_hex(old_rev_sha1),
+                        sha1_to_hex(new_rev_sha1));
         }
 
         patchname = fmt("%s.patch", rev_range);