diff options
| author | Ian Munsie <imunsie@au1.ibm.com> | 2016-06-30 04:55:17 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-08 22:13:34 +1000 |
| commit | f5c9df9a442f586b183947627210e167ded81d19 (patch) | |
| tree | f9bd0f98948bd5c879aa5c10aa2c41c641be519c /drivers/misc/cxl/context.c | |
| parent | 2a4f667aadb2d61c289a52a0d6dbc7e4e3aa009f (diff) | |
cxl: Fix NULL pointer dereference on kernel contexts with no AFU interrupts
If a kernel context is initialised and does not have any AFU interrupts
allocated it will cause a NULL pointer dereference when the context is
detached since the irq_names list will not have been initialised.
Move the initialisation of the irq_names list into the cxl_context_init
routine so that it will be valid for the entire lifetime of the context
and will not cause a NULL pointer dereference.
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/misc/cxl/context.c')
| -rw-r--r-- | drivers/misc/cxl/context.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c index 26d206b1d08c..edbb99e93114 100644 --- a/drivers/misc/cxl/context.c +++ b/drivers/misc/cxl/context.c @@ -67,6 +67,8 @@ int cxl_context_init(struct cxl_context *ctx, struct cxl_afu *afu, bool master, ctx->pending_fault = false; ctx->pending_afu_err = false; + INIT_LIST_HEAD(&ctx->irq_names); + /* * When we have to destroy all contexts in cxl_context_detach_all() we * end up with afu_release_irqs() called from inside a |