| Message ID | 1603849967-22817-1-git-send-email-sw0312.kim@samsung.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2] brcmfmac: Fix memory leak for unpaired brcmf_{alloc/free} | expand |
Seung-Woo Kim <sw0312.kim@samsung.com> writes: > There are missig brcmf_free() for brcmf_alloc(). Fix memory leak > by adding missed brcmf_free(). > > Reported-by: Jaehoon Chung <jh80.chung@samsung.com> > Fixes: commit 450914c39f88 ("brcmfmac: split brcmf_attach() and brcmf_detach() functions") This should be: Fixes: 450914c39f88 ("brcmfmac: split brcmf_attach() and brcmf_detach() functions") But I can fix that, no need to resend because of this. -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
On November 2, 2020 6:15:32 PM Kalle Valo <kvalo@codeaurora.org> wrote: > Seung-Woo Kim <sw0312.kim@samsung.com> writes: > >> There are missig brcmf_free() for brcmf_alloc(). Fix memory leak >> by adding missed brcmf_free(). >> >> Reported-by: Jaehoon Chung <jh80.chung@samsung.com> >> Fixes: commit 450914c39f88 ("brcmfmac: split brcmf_attach() and >> brcmf_detach() functions") > > This should be: > > Fixes: 450914c39f88 ("brcmfmac: split brcmf_attach() and brcmf_detach() > functions") > > But I can fix that, no need to resend because of this. Hi Kalle, But this is not the commit that needs fixing as I mentioned before. Instead it should be a1f5aac1765af ("brcmfmac: don't realloc wiphy during PCIe reset") which introduced the actual memory leak. Regards, Arend > -- > https://patchwork.kernel.org/project/linux-wireless/list/ > > https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
Arend Van Spriel <arend.vanspriel@broadcom.com> writes: > On November 2, 2020 6:15:32 PM Kalle Valo <kvalo@codeaurora.org> wrote: > >> Seung-Woo Kim <sw0312.kim@samsung.com> writes: >> >>> There are missig brcmf_free() for brcmf_alloc(). Fix memory leak >>> by adding missed brcmf_free(). >>> >>> Reported-by: Jaehoon Chung <jh80.chung@samsung.com> >>> Fixes: commit 450914c39f88 ("brcmfmac: split brcmf_attach() and >>> brcmf_detach() functions") >> >> This should be: >> >> Fixes: 450914c39f88 ("brcmfmac: split brcmf_attach() and >> brcmf_detach() functions") >> >> But I can fix that, no need to resend because of this. > > Hi Kalle, > > But this is not the commit that needs fixing as I mentioned before. > Instead it should be a1f5aac1765af ("brcmfmac: don't realloc wiphy > during PCIe reset") which introduced the actual memory leak. I'll then change it to: Fixes: a1f5aac1765a ("brcmfmac: don't realloc wiphy during PCIe reset") Is that ok? -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
On November 2, 2020 6:46:12 PM Kalle Valo <kvalo@codeaurora.org> wrote: > Arend Van Spriel <arend.vanspriel@broadcom.com> writes: > >> On November 2, 2020 6:15:32 PM Kalle Valo <kvalo@codeaurora.org> wrote: >> >>> Seung-Woo Kim <sw0312.kim@samsung.com> writes: >>> >>>> There are missig brcmf_free() for brcmf_alloc(). Fix memory leak >>>> by adding missed brcmf_free(). >>>> >>>> Reported-by: Jaehoon Chung <jh80.chung@samsung.com> >>>> Fixes: commit 450914c39f88 ("brcmfmac: split brcmf_attach() and >>>> brcmf_detach() functions") >>> >>> This should be: >>> >>> Fixes: 450914c39f88 ("brcmfmac: split brcmf_attach() and >>> brcmf_detach() functions") >>> >>> But I can fix that, no need to resend because of this. >> >> Hi Kalle, >> >> But this is not the commit that needs fixing as I mentioned before. >> Instead it should be a1f5aac1765af ("brcmfmac: don't realloc wiphy >> during PCIe reset") which introduced the actual memory leak. > > I'll then change it to: > > Fixes: a1f5aac1765a ("brcmfmac: don't realloc wiphy during PCIe reset") > > Is that ok? It is for me ;-) Regards, Arend
Seung-Woo Kim <sw0312.kim@samsung.com> wrote: > There are missig brcmf_free() for brcmf_alloc(). Fix memory leak > by adding missed brcmf_free(). > > Reported-by: Jaehoon Chung <jh80.chung@samsung.com> > Fixes: a1f5aac1765a ("brcmfmac: don't realloc wiphy during PCIe reset") > Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> > Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com> Patch applied to wireless-drivers-next.git, thanks. 9db946284e07 brcmfmac: Fix memory leak for unpaired brcmf_{alloc/free} -- https://patchwork.kernel.org/project/linux-wireless/patch/1603849967-22817-1-git-send-email-sw0312.kim@samsung.com/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c index 39381cb..d8db0db 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c @@ -1936,16 +1936,18 @@ static void brcmf_pcie_setup(struct device *dev, int ret, fwreq = brcmf_pcie_prepare_fw_request(devinfo); if (!fwreq) { ret = -ENOMEM; - goto fail_bus; + goto fail_brcmf; } ret = brcmf_fw_get_firmwares(bus->dev, fwreq, brcmf_pcie_setup); if (ret < 0) { kfree(fwreq); - goto fail_bus; + goto fail_brcmf; } return 0; +fail_brcmf: + brcmf_free(&devinfo->pdev->dev); fail_bus: kfree(bus->msgbuf); kfree(bus); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index 99987a7..59c2b2b 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -4541,6 +4541,7 @@ void brcmf_sdio_remove(struct brcmf_sdio *bus) brcmf_sdiod_intr_unregister(bus->sdiodev); brcmf_detach(bus->sdiodev->dev); + brcmf_free(bus->sdiodev->dev); cancel_work_sync(&bus->datawork); if (bus->brcmf_wq)
There are missig brcmf_free() for brcmf_alloc(). Fix memory leak by adding missed brcmf_free(). Reported-by: Jaehoon Chung <jh80.chung@samsung.com> Fixes: commit 450914c39f88 ("brcmfmac: split brcmf_attach() and brcmf_detach() functions") Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com> --- Change from v1 [1] - add Fixes tag for the commit creating brcmf_alloc/free and unpaired path - add Reviewd-by tag from Arend [1] https://lore.kernel.org/linux-wireless/1603795630-14638-1-git-send-email-sw0312.kim@samsung.com/ --- .../wireless/broadcom/brcm80211/brcmfmac/pcie.c | 6 ++++-- .../wireless/broadcom/brcm80211/brcmfmac/sdio.c | 1 + 2 files changed, 5 insertions(+), 2 deletions(-)