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qcacmn: Untrack nbuf map on map failure

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Currently, nbuf map tracking happens before the nbuf is actually mapped.
In cases where the actual map operation fails, remove the nbuf map
tracking information to avoid false positive mapped-never-unmapped
panics.

Change-Id: I8e649841a661d460bf89dd5edf09bb5e460ea98c
CRs-Fixed: 2171837
This commit is contained in:
Dustin Brown 2018-01-12 16:56:06 -08:00 • committed by snandini
commit dbc7ec1702
1 changed files with 20 additions and 4 deletions
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24
qdf/linux/src/qdf_nbuf.c
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@ -658,7 +658,11 @@ QDF_STATUS qdf_nbuf_map_debug(qdf_device_t osdev,
if (QDF_IS_STATUS_ERROR(status))
return status;
return __qdf_nbuf_map(osdev, buf, dir);
status = __qdf_nbuf_map(osdev, buf, dir);
if (QDF_IS_STATUS_ERROR(status))
qdf_nbuf_untrack_map(buf, file, line);
return status;
}
void qdf_nbuf_unmap_debug(qdf_device_t osdev,
@ -683,7 +687,11 @@ QDF_STATUS qdf_nbuf_map_single_debug(qdf_device_t osdev,
if (QDF_IS_STATUS_ERROR(status))
return status;
return __qdf_nbuf_map_single(osdev, buf, dir);
status = __qdf_nbuf_map_single(osdev, buf, dir);
if (QDF_IS_STATUS_ERROR(status))
qdf_nbuf_untrack_map(buf, file, line);
return status;
}
void qdf_nbuf_unmap_single_debug(qdf_device_t osdev,
@ -709,7 +717,11 @@ QDF_STATUS qdf_nbuf_map_nbytes_debug(qdf_device_t osdev,
if (QDF_IS_STATUS_ERROR(status))
return status;
return __qdf_nbuf_map_nbytes(osdev, buf, dir, nbytes);
status = __qdf_nbuf_map_nbytes(osdev, buf, dir, nbytes);
if (QDF_IS_STATUS_ERROR(status))
qdf_nbuf_untrack_map(buf, file, line);
return status;
}
void qdf_nbuf_unmap_nbytes_debug(qdf_device_t osdev,
@ -736,7 +748,11 @@ QDF_STATUS qdf_nbuf_map_nbytes_single_debug(qdf_device_t osdev,
if (QDF_IS_STATUS_ERROR(status))
return status;
return __qdf_nbuf_map_nbytes_single(osdev, buf, dir, nbytes);
status = __qdf_nbuf_map_nbytes_single(osdev, buf, dir, nbytes);
if (QDF_IS_STATUS_ERROR(status))
qdf_nbuf_untrack_map(buf, file, line);
return status;
}
void qdf_nbuf_unmap_nbytes_single_debug(qdf_device_t osdev,