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wil6210: fix array out of bounds access in pmc

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Array index 'i' is used before limits check.
Fix this by doing limits check first.

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Dedy Lansky 2017-04-05 14:58:13 +03:00 committed by Kalle Valo
parent bd50e2688a
commit 98a830a98d
1 changed files with 2 additions and 2 deletions
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4
drivers/net/wireless/ath/wil6210/pmc.c
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@ -200,7 +200,7 @@ void wil_pmc_alloc(struct wil6210_priv *wil,
release_pmc_skbs:
wil_err(wil, "exit on error: Releasing skbs...\n");
for (i = 0; pmc->descriptors[i].va && i < num_descriptors; i++) {
for (i = 0; i < num_descriptors && pmc->descriptors[i].va; i++) {
dma_free_coherent(dev,
descriptor_size,
pmc->descriptors[i].va,
@ -283,7 +283,7 @@ void wil_pmc_free(struct wil6210_priv *wil, int send_pmc_cmd)
int i;
for (i = 0;
pmc->descriptors[i].va && i < pmc->num_descriptors; i++) {
i < pmc->num_descriptors && pmc->descriptors[i].va; i++) {
dma_free_coherent(dev,
pmc->descriptor_size,
pmc->descriptors[i].va,