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mwifiex: Do not use GFP_KERNEL in atomic context
A possible call chain is as follow: mwifiex_sdio_interrupt (sdio.c) --> mwifiex_main_process (main.c) --> mwifiex_process_cmdresp (cmdevt.c) --> mwifiex_process_sta_cmdresp (sta_cmdresp.c) --> mwifiex_ret_802_11_scan (scan.c) --> mwifiex_parse_single_response_buf (scan.c) 'mwifiex_sdio_interrupt()' is an interrupt function. Also note that 'mwifiex_ret_802_11_scan()' already uses GFP_ATOMIC. So use GFP_ATOMIC instead of GFP_KERNEL when memory is allocated in 'mwifiex_parse_single_response_buf()'. Fixes:7c6fa2a843
("mwifiex: use cfg80211 dynamic scan table and cfg80211_get_bss API") or Fixes:601216e12c
("mwifiex: process RX packets in SDIO IRQ thread directly") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200809092906.744621-1-christophe.jaillet@wanadoo.fr
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1 changed files with 1 additions and 1 deletions
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@ -1889,7 +1889,7 @@ mwifiex_parse_single_response_buf(struct mwifiex_private *priv, u8 **bss_info,
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chan, CFG80211_BSS_FTYPE_UNKNOWN,
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bssid, timestamp,
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cap_info_bitmap, beacon_period,
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ie_buf, ie_len, rssi, GFP_KERNEL);
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ie_buf, ie_len, rssi, GFP_ATOMIC);
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if (bss) {
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bss_priv = (struct mwifiex_bss_priv *)bss->priv;
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bss_priv->band = band;
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