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soc: swr-mstr: Add out-of-bound check

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Update out-of-bound check in parse swr port mapping.

Change-Id: I3735ff68c293fdb96dd7b004438faa999195adb2
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
This commit is contained in:
Laxminath Kasam
2021-03-11 12:04:31 +05:30
parent 79d3ed87ca
commit d45f83b5bf
2 changed files with 8 additions and 1 deletions
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7
soc/swr-mstr-ctrl.c
View File

@@ -2792,6 +2792,13 @@ static int swrm_probe(struct platform_device *pdev)
if (port_num != old_port_num)
ch_iter = 0;
if (port_num > SWR_MSTR_PORT_LEN ||
ch_iter >= SWR_MAX_CH_PER_PORT) {
dev_err(&pdev->dev,
"%s:invalid port_num %d or ch_iter %d\n",
__func__, port_num, ch_iter);
goto err_pdata_fail;
}
swrm->port_mapping[port_num][ch_iter].port_type = port_type;
swrm->port_mapping[port_num][ch_iter++].ch_mask = ch_mask;
old_port_num = port_num;

2
soc/swr-mstr-ctrl.h
View File

@@ -171,7 +171,7 @@ struct swr_mstr_ctrl {
struct work_struct dc_presence_work;
u8 num_ports;
struct swrm_port_type
port_mapping[SWR_MSTR_PORT_LEN][SWR_MAX_CH_PER_PORT];
port_mapping[SWR_MSTR_PORT_LEN + 1][SWR_MAX_CH_PER_PORT];
int swr_irq;
u32 clk_stop_mode0_supp;
struct work_struct wakeup_work;