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Memory allocated for wqs is not freed if an error occurs during idxd_setup_wqs(). To fix it, free the allocated memory in the reverse order of allocation before exiting the function in case of an error. Fixes:7c5dd23e57("dmaengine: idxd: fix wq conf_dev 'struct device' lifetime") Fixes:700af3a0a2("dmaengine: idxd: add 'struct idxd_dev' as wrapper for conf_dev") Fixes:de5819b994("dmaengine: idxd: track enabled workqueues in bitmap") Fixes:b0325aefd3("dmaengine: idxd: add WQ operation cap restriction support") Cc: stable@vger.kernel.org Signed-off-by: Shuai Xue <xueshuai@linux.alibaba.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Fenghua Yu <fenghuay@nvidia.com> Link: https://lore.kernel.org/r/20250404120217.48772-2-xueshuai@linux.alibaba.com Signed-off-by: Vinod Koul <vkoul@kernel.org>