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hgsl: Fix possible array index out of bound issue

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To guarantee the array index is valid before use it

Change-Id: If1b37777b633edf66dad8a9f5323b042cc3b9012
Signed-off-by: Kasin Li <donglil@codeaurora.org>
Signed-off-by: Ya Tang <yatang@codeaurora.org>
This commit is contained in:
Kasin Li 2021-05-17 19:26:37 +08:00 • committed by Gerrit - the friendly Code Review server
commit 761724af63
1 changed files with 3 additions and 2 deletions
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5
drivers/soc/qcom/hgsl/hgsl.c
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@ -358,8 +358,9 @@ static void gmu_ring_local_db(struct qcom_hgsl *hgsl, unsigned int value)
static void tcsr_ring_global_db(struct qcom_hgsl *hgsl, uint32_t tcsr_idx,
uint32_t dbq_idx)
{
hgsl_tcsr_irq_trigger(hgsl->tcsr[tcsr_idx][HGSL_TCSR_ROLE_SENDER],
GLB_DB_SRC_ISSUEIB_IRQ_ID_0 + dbq_idx);
if (tcsr_idx < HGSL_TCSR_NUM)
hgsl_tcsr_irq_trigger(hgsl->tcsr[tcsr_idx][HGSL_TCSR_ROLE_SENDER],
GLB_DB_SRC_ISSUEIB_IRQ_ID_0 + dbq_idx);
}
static bool hgsl_ctx_dbq_ready(struct hgsl_priv *priv)