staging: rtl8188eu: avoid a null dereference on pmlmepriv

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commit 123c0aab00 upstream.

There is a check on pmlmepriv before dereferencing it when
vfree'ing pmlmepriv->free_bss_buf however the previous call
to rtw_free_mlme_priv_ie_data deferences pmlmepriv causing
a null pointer deference if it is null.  Avoid this by also
calling rtw_free_mlme_priv_ie_data if the pointer is non-null.

Detected by CoverityScan, CID#1230262 ("Dereference before null check")
Fixes: 7b464c9fa5 ("staging: r8188eu: Add files for new driver - part 4")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

...

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Colin Ian King 2017-10-20 20:40:24 +02:00 • committed by Ben Hutchings

parent fd6ba07391

commit 62a449252b

1 changed files with 1 additions and 2 deletions

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drivers/staging/rtl8188eu/core/rtw_mlme.c

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