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wil6210: fix printout in wil_read_pmccfg

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Replace sprintf with snprintf which checks the destination buffer
size.

Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Dedy Lansky
2019-06-16 10:26:01 +03:00
committed by Kalle Valo
parent c5b3a6582b
commit dedec35b40
1 changed files with 2 additions and 3 deletions
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5
drivers/net/wireless/ath/wil6210/debugfs.c
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@@ -940,9 +940,8 @@ static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf,
" - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n" " - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n"
" - \"free\" to free memory allocated for pmc\n"; " - \"free\" to free memory allocated for pmc\n";
sprintf(text, "Last command status: %d\n\n%s", snprintf(text, sizeof(text), "Last command status: %d\n\n%s",
wil_pmc_last_cmd_status(wil), wil_pmc_last_cmd_status(wil), help);
help);
return simple_read_from_buffer(user_buf, count, ppos, text, return simple_read_from_buffer(user_buf, count, ppos, text,
strlen(text) + 1); strlen(text) + 1);