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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2017-11-15 07:58:35 +0100
committerBjorn Andersson <bjorn.andersson@linaro.org>2017-11-14 23:20:11 -0800
commit1a5d5c592e902191bfa091ec9169aa43299a7d0f (patch)
tree3c93a23af068752e0441af9abd36de6bb5618128 /drivers/remoteproc
parent9f2a4342a8bf24c644204311f0cf154f78489b53 (diff)
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 <christophe.jaillet@wanadoo.fr> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc')
-rw-r--r--drivers/remoteproc/qcom_q6v5_pil.c7
1 files changed, 5 insertions, 2 deletions
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;

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