From: Christophe JAILLET Date: Wed, 15 Nov 2017 06:58:35 +0000 (+0100) Subject: remoteproc: qcom: Fix error handling paths in order to avoid memory leaks X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=1a5d5c592e902191bfa091ec9169aa43299a7d0f;p=openwrt%2Fstaging%2Fblogic.git remoteproc: qcom: Fix error handling paths in order to avoid memory leaks In case of error returned by 'q6v5_xfer_mem_ownership', we must free some resources before returning. In 'q6v5_mpss_init_image()', add a new label to undo a previous 'dma_alloc_attrs()'. In 'q6v5_mpss_load()', re-use the already existing error handling code to undo a previous 'request_firmware()', as already done in the other error handling paths of the function. Signed-off-by: Christophe JAILLET Signed-off-by: Bjorn Andersson --- diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c index a019796c363a..8a3fa2bcc9f6 100644 --- a/drivers/remoteproc/qcom_q6v5_pil.c +++ b/drivers/remoteproc/qcom_q6v5_pil.c @@ -580,7 +580,8 @@ static int q6v5_mpss_init_image(struct q6v5 *qproc, const struct firmware *fw) if (ret) { dev_err(qproc->dev, "assigning Q6 access to metadata failed: %d\n", ret); - return -EAGAIN; + ret = -EAGAIN; + goto free_dma_attrs; } writel(phys, qproc->rmb_base + RMB_PMI_META_DATA_REG); @@ -599,6 +600,7 @@ static int q6v5_mpss_init_image(struct q6v5 *qproc, const struct firmware *fw) dev_warn(qproc->dev, "mdt buffer not reclaimed system may become unstable\n"); +free_dma_attrs: dma_free_attrs(qproc->dev, fw->size, ptr, phys, dma_attrs); return ret < 0 ? ret : 0; @@ -712,7 +714,8 @@ static int q6v5_mpss_load(struct q6v5 *qproc) if (ret) { dev_err(qproc->dev, "assigning Q6 access to mpss memory failed: %d\n", ret); - return -EAGAIN; + ret = -EAGAIN; + goto release_firmware; } boot_addr = relocate ? qproc->mpss_phys : min_addr;