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pipe-loader: check if winsys.name is non-null prior to strcmp

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In theory this wouldn't be an issue, as we'll find the correct name and
break out of the loop before we hit the sentinel.

Let's fix this and avoid issues in the future.

Spotted by Coverity (CID 1339869, 1339870, 1339871)

Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
This commit is contained in:
Emil Velikov 2015-11-23 20:26:55 +00:00
parent 866a1f7fdd
commit 5f92906b87
1 changed files with 4 additions and 4 deletions
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8
src/gallium/auxiliary/pipe-loader/pipe_loader_sw.c
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@ -137,7 +137,7 @@ pipe_loader_sw_probe_dri(struct pipe_loader_device **devs, struct drisw_loader_f
if (!pipe_loader_sw_probe_init_common(sdev))
goto fail;
for (i = 0; sdev->dd->winsys; i++) {
for (i = 0; sdev->dd->winsys[i].name; i++) {
if (strcmp(sdev->dd->winsys[i].name, "dri") == 0) {
sdev->ws = sdev->dd->winsys[i].create_winsys(drisw_lf);
break;
@ -169,7 +169,7 @@ pipe_loader_sw_probe_kms(struct pipe_loader_device **devs, int fd)
if (!pipe_loader_sw_probe_init_common(sdev))
goto fail;
for (i = 0; sdev->dd->winsys; i++) {
for (i = 0; sdev->dd->winsys[i].name; i++) {
if (strcmp(sdev->dd->winsys[i].name, "kms_dri") == 0) {
sdev->ws = sdev->dd->winsys[i].create_winsys(fd);
break;
@ -200,7 +200,7 @@ pipe_loader_sw_probe_null(struct pipe_loader_device **devs)
if (!pipe_loader_sw_probe_init_common(sdev))
goto fail;
for (i = 0; sdev->dd->winsys; i++) {
for (i = 0; sdev->dd->winsys[i].name; i++) {
if (strcmp(sdev->dd->winsys[i].name, "null") == 0) {
sdev->ws = sdev->dd->winsys[i].create_winsys();
break;
@ -245,7 +245,7 @@ pipe_loader_sw_probe_wrapped(struct pipe_loader_device **dev,
if (!pipe_loader_sw_probe_init_common(sdev))
goto fail;
for (i = 0; sdev->dd->winsys; i++) {
for (i = 0; sdev->dd->winsys[i].name; i++) {
if (strcmp(sdev->dd->winsys[i].name, "wrapped") == 0) {
sdev->ws = sdev->dd->winsys[i].create_winsys(screen);
break;