From: Lukas Fleischer <cgit@cryptocrack.de>
Date: Tue, 5 Apr 2011 08:38:53 +0000 (+0200)
Subject: Avoid null pointer dereference in cgit_print_diff().
X-Git-Url: https://gitweb.ps.run/ps-cgit/commitdiff_plain/9afc883297b0d0943e9b358d2299950f33e8e5ed?hp=9afc883297b0d0943e9b358d2299950f33e8e5ed

Avoid null pointer dereference in cgit_print_diff().

When calling cgit_print_diff() with a bad new_rev and a NULL old_rev,
checking for new_rev's parent commit will result in a null pointer
dereference. Returning on an invalid commit before dereferencing fixes
this. Spotted with clang-analyzer.

Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
---