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This commit is contained in:
Michal Moskal
2017-07-26 11:27:15 +01:00
parent 067f8727a6
commit b46e18b807
1 changed files with 18 additions and 5 deletions
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23
brick/kernel/f_mass_storage.c
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@@ -302,7 +302,6 @@ static const char fsg_string_interface[] = "Mass Storage";
#define FSG_NO_INTR_EP 1 #define FSG_NO_INTR_EP 1
#define FSG_BUFFHD_STATIC_BUFFER 1
#define FSG_NO_DEVICE_STRINGS 1 #define FSG_NO_DEVICE_STRINGS 1
#define FSG_NO_OTG 1 #define FSG_NO_OTG 1
#define FSG_NO_INTR_EP 1 #define FSG_NO_INTR_EP 1
@@ -2795,13 +2794,19 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common,
/* Data buffers cyclic list */ /* Data buffers cyclic list */
/* Buffers in buffhds are static -- no need for additional
* allocation. */
bh = common->buffhds; bh = common->buffhds;
i = FSG_NUM_BUFFERS - 1; i = FSG_NUM_BUFFERS;
goto buffhds_first_it;
do { do {
bh->next = bh + 1; bh->next = bh + 1;
} while (++bh, --i); ++bh;
buffhds_first_it:
bh->buf = kmalloc(FSG_BUFLEN, GFP_KERNEL);
if (unlikely(!bh->buf)) {
rc = -ENOMEM;
goto error_release;
}
} while (--i);
bh->next = common->buffhds; bh->next = common->buffhds;
@@ -2909,6 +2914,7 @@ static void fsg_common_release(struct kref *ref)
container_of(ref, struct fsg_common, ref); container_of(ref, struct fsg_common, ref);
unsigned i = common->nluns; unsigned i = common->nluns;
struct fsg_lun *lun = common->luns; struct fsg_lun *lun = common->luns;
struct fsg_buffhd *bh;
/* If the thread isn't already dead, tell it to exit now */ /* If the thread isn't already dead, tell it to exit now */
if (common->state != FSG_STATE_TERMINATED) { if (common->state != FSG_STATE_TERMINATED) {
@@ -2930,6 +2936,13 @@ static void fsg_common_release(struct kref *ref)
} }
kfree(common->luns); kfree(common->luns);
i = FSG_NUM_BUFFERS;
bh = common->buffhds;
do {
kfree(bh->buf);
} while (++bh, --i);
if (common->free_storage_on_release) if (common->free_storage_on_release)
kfree(common); kfree(common);
} }