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| Started by | Colin King <colin.king@canonical.com> |
|---|---|
| First post | 2016-06-02 12:30 +0200 |
| Last post | 2016-06-03 12:50 +0200 |
| Articles | 3 — 3 participants |
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[PATCH] drm/nouveau/iccsense: fix memory leak on default sensor->type case Colin King <colin.king@canonical.com> - 2016-06-02 12:30 +0200
Re: [Nouveau] [PATCH] drm/nouveau/iccsense: fix memory leak on default sensor->type case karol herbst <karolherbst@gmail.com> - 2016-06-03 12:00 +0200
Re: [Nouveau] [PATCH] drm/nouveau/iccsense: fix memory leak on default sensor->type case Colin Ian King <colin.king@canonical.com> - 2016-06-03 12:50 +0200
| From | Colin King <colin.king@canonical.com> |
|---|---|
| Date | 2016-06-02 12:30 +0200 |
| Subject | [PATCH] drm/nouveau/iccsense: fix memory leak on default sensor->type case |
| Message-ID | <rFy2Z-4Jw-23@gated-at.bofh.it> |
From: Colin Ian King <colin.king@canonical.com> The default sensor->type case leaks memory allocated to rail. Fix this by free'ing rail before we continue with the next loop iteration. Signed-off-by: Colin Ian King <colin.king@canonical.com> --- drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c index 323c79a..79b0eb5 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c @@ -305,6 +305,7 @@ nvkm_iccsense_oneinit(struct nvkm_subdev *subdev) rail->read = nvkm_iccsense_ina3221_read; break; default: + kfree(rail); continue; } -- 2.8.1
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| From | karol herbst <karolherbst@gmail.com> |
|---|---|
| Date | 2016-06-03 12:00 +0200 |
| Subject | Re: [Nouveau] [PATCH] drm/nouveau/iccsense: fix memory leak on default sensor->type case |
| Message-ID | <rFU3v-1wB-5@gated-at.bofh.it> |
| In reply to | #1412105 |
Hi Colin, thanks for pointing this out, but I am quite sure this continue statement won't ever be hit, ever. check the nvkm_iccsense_create_sensor function. A sensor object will only be created for one of those three types and others don't exist. I've just added that default statement to shut GCC I think. The thing is I reworked that code already and will check if this situation still applies there. 2016-06-02 12:28 GMT+02:00 Colin King <colin.king@canonical.com>: > From: Colin Ian King <colin.king@canonical.com> > > The default sensor->type case leaks memory allocated to rail. Fix > this by free'ing rail before we continue with the next loop iteration. > > Signed-off-by: Colin Ian King <colin.king@canonical.com> > --- > drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c > index 323c79a..79b0eb5 100644 > --- a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c > +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c > @@ -305,6 +305,7 @@ nvkm_iccsense_oneinit(struct nvkm_subdev *subdev) > rail->read = nvkm_iccsense_ina3221_read; > break; > default: > + kfree(rail); > continue; > } > > -- > 2.8.1 > > _______________________________________________ > Nouveau mailing list > Nouveau@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/nouveau
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| From | Colin Ian King <colin.king@canonical.com> |
|---|---|
| Date | 2016-06-03 12:50 +0200 |
| Subject | Re: [Nouveau] [PATCH] drm/nouveau/iccsense: fix memory leak on default sensor->type case |
| Message-ID | <rFUPU-21R-29@gated-at.bofh.it> |
| In reply to | #1412985 |
On 03/06/16 10:55, karol herbst wrote: > Hi Colin, > > thanks for pointing this out, but I am quite sure this continue > statement won't ever be hit, ever. > > check the nvkm_iccsense_create_sensor function. A sensor object will > only be created for one of those three types and others don't exist. > I've just added that default statement to shut GCC I think. > > The thing is I reworked that code already and will check if this > situation still applies there. OK, thanks for letting me know. Apologies if I burnt up some of your valuable cycles on this. Colin > > 2016-06-02 12:28 GMT+02:00 Colin King <colin.king@canonical.com>: >> From: Colin Ian King <colin.king@canonical.com> >> >> The default sensor->type case leaks memory allocated to rail. Fix >> this by free'ing rail before we continue with the next loop iteration. >> >> Signed-off-by: Colin Ian King <colin.king@canonical.com> >> --- >> drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c >> index 323c79a..79b0eb5 100644 >> --- a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c >> +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c >> @@ -305,6 +305,7 @@ nvkm_iccsense_oneinit(struct nvkm_subdev *subdev) >> rail->read = nvkm_iccsense_ina3221_read; >> break; >> default: >> + kfree(rail); >> continue; >> } >> >> -- >> 2.8.1 >> >> _______________________________________________ >> Nouveau mailing list >> Nouveau@lists.freedesktop.org >> https://lists.freedesktop.org/mailman/listinfo/nouveau
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