clover: fix tgsi compiler crash with invalid src

Reviewed-by: Francisco Jerez <currojerez@riseup.net>

diff --git a/src/gallium/state_trackers/clover/tgsi/compiler.cpp b/src/gallium/state_trackers/clover/tgsi/compiler.cpp
index 54cb747e6fb5495fe7cf181ec728b139bd7db1d1..4d056668a22440d19803d5d20d64bbf19ff4d147 100644 (file)
--- a/src/gallium/state_trackers/clover/tgsi/compiler.cpp
+++ b/src/gallium/state_trackers/clover/tgsi/compiler.cpp
@@ -97,6 +97,11 @@ namespace {
 module
 clover::compile_program_tgsi(const std::string &source, std::string &r_log) {
    const size_t body_pos = source.find("COMP\n");
+   if (body_pos == std::string::npos) {
+      r_log = "invalid source";
+      throw compile_error();
+   }
+
    const char *body = &source[body_pos];
    module m;