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fix potential NULL dereference (bug 11880)

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This commit is contained in:
Brian 2007-08-07 21:46:42 +01:00
parent 4bb5721f6b
commit 5abf055100
1 changed files with 6 additions and 2 deletions
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8
src/mesa/shader/shader_api.c
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@ -378,7 +378,7 @@ _mesa_attach_shader(GLcontext *ctx, GLuint program, GLuint shader)
struct gl_shader_program *shProg
= _mesa_lookup_shader_program(ctx, program);
struct gl_shader *sh = _mesa_lookup_shader(ctx, shader);
const GLuint n = shProg->NumShaders;
GLuint n;
GLuint i;
if (!shProg || !sh) {
@ -387,6 +387,8 @@ _mesa_attach_shader(GLcontext *ctx, GLuint program, GLuint shader)
return;
}
n = shProg->NumShaders;
for (i = 0; i < n; i++) {
if (shProg->Shaders[i] == sh) {
/* already attached */
@ -548,7 +550,7 @@ _mesa_detach_shader(GLcontext *ctx, GLuint program, GLuint shader)
{
struct gl_shader_program *shProg
= _mesa_lookup_shader_program(ctx, program);
const GLuint n = shProg->NumShaders;
GLuint n;
GLuint i, j;
if (!shProg) {
@ -557,6 +559,8 @@ _mesa_detach_shader(GLcontext *ctx, GLuint program, GLuint shader)
return;
}
n = shProg->NumShaders;
for (i = 0; i < n; i++) {
if (shProg->Shaders[i]->Name == shader) {
/* found it */