Replace BUG() with WARN_ON() as recommended in
Documentation/process/deprecated.rst
Fix system entering into unstable/break/undebuggable state due to use
of BUG(). Follow strict suggestions as per [1] [2].

Link: 
https://lore.kernel.org/lkml/CA+55aFy6jNLsywVYdGp83AMrXBo_P-pkjkphPGrO=82spkc...@mail.gmail.com/
 [1]
Link: 
https://lore.kernel.org/lkml/CAHk-=whDHsbK3HTOpTF=ue_o04onRwTEaK_ZoJp_fjbqq4+=j...@mail.gmail.com/
 [2]
Signed-off-by: Akhilesh Patil <akhil...@ee.iitb.ac.in>
---
 drivers/tty/serial/ucc_uart.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index 0613f8c11ab1..6214ab1b67cb 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -223,7 +223,7 @@ static inline dma_addr_t cpu2qe_addr(void *addr, struct 
uart_qe_port *qe_port)
 
        /* something nasty happened */
        printk(KERN_ERR "%s: addr=%p\n", __func__, addr);
-       BUG();
+       WARN_ON(1);
        return 0;
 }
 
@@ -242,7 +242,7 @@ static inline void *qe2cpu_addr(dma_addr_t addr, struct 
uart_qe_port *qe_port)
 
        /* something nasty happened */
        printk(KERN_ERR "%s: addr=%llx\n", __func__, (u64)addr);
-       BUG();
+       WARN_ON(1);
        return NULL;
 }
 
-- 
2.34.1


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