From: Roland Vossen Date: Mon, 8 Aug 2011 13:57:46 +0000 (+0200) Subject: staging: brcm80211: bugfix for len==0 parameter in 3 fullmac functions X-Git-Tag: MMI-PSA29.97-13-9~18234^2^2~864^2~382 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2c1599cfd6a736e09c29c772fbaf41250646ad42;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git staging: brcm80211: bugfix for len==0 parameter in 3 fullmac functions Three functions use the same method to check incoming parameters. The 'len' parameter can be equal to 0 in case of a 'set' operation. Currently these functions return an error code under that condition, which is incorrect. The problem was introduced in recent patches in which asserts were removed from the fullmac. Despite this being a bug, my regression testing has not shown any problems. Reported-by: Dan Carpenter Signed-off-by: Roland Vossen Reviewed-by: Arend van Spriel Reviewed-by: Franky Lin Signed-off-by: Arend van Spriel Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c b/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c index 38bd9ba3096f..e345af7918e2 100644 --- a/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c +++ b/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c @@ -407,7 +407,7 @@ brcmf_sdioh_iovar_op(struct sdioh_info *si, const char *name, bool bool_val; u32 actionid; - if (name == NULL || len <= 0) + if (name == NULL || len < 0) return -EINVAL; /* Set does not take qualifiers */ diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_common.c b/drivers/staging/brcm80211/brcmfmac/dhd_common.c index fdec4683c422..1e757b73b807 100644 --- a/drivers/staging/brcm80211/brcmfmac/dhd_common.c +++ b/drivers/staging/brcm80211/brcmfmac/dhd_common.c @@ -311,7 +311,7 @@ brcmf_c_iovar_op(struct brcmf_pub *drvr, const char *name, BRCMF_TRACE(("%s: Enter\n", __func__)); - if (name == NULL || len <= 0) + if (name == NULL || len < 0) return -EINVAL; /* Set does not take qualifiers */ diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c index 7fa95b6213c5..acad298567fc 100644 --- a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c +++ b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c @@ -3123,7 +3123,7 @@ brcmf_sdbrcm_bus_iovar_op(struct brcmf_pub *drvr, const char *name, BRCMF_TRACE(("%s: Enter\n", __func__)); - if (name == NULL || len <= 0) + if (name == NULL || len < 0) return -EINVAL; /* Set does not take qualifiers */