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wifi: wlcore: correctness fix fwlog reading

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Fix the calculation of clear_offset, which may overflow the end of
the buffer. However, this is harmless if it does because in that case
it will be recalculated when we copy the chunk of messages at the
start of the buffer.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/E1sBsxi-00E8vQ-5r@rmk-PC.armlinux.org.uk
This commit is contained in:
Russell King (Oracle)
2024-05-28 10:17:42 +01:00
committed by Kalle Valo
parent a2ead3445a
commit 64ff013ce0
1 changed files with 1 additions and 1 deletions
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drivers/net/wireless/ti/wlcore/event.c
+1 -1
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@@ -83,7 +83,7 @@ int wlcore_event_fw_logger(struct wl1271 *wl)
/* Copy initial part up to the end of ring buffer */
len = min(actual_len, available_len);
wl12xx_copy_fwlog(wl, &buffer[start_loc], len);
clear_ptr = addr_ptr + start_loc + actual_len;
clear_ptr = addr_ptr + start_loc + len;
if (clear_ptr == buff_end_ptr)
clear_ptr = buff_start_ptr;